Heuristic Sugarscape.nlogo

; Food for thought: Emulate the effects of legal process by creating a delay between turtle death and turtle instantiation in order to emulate the effects of waves of legal proceedings.


; Code in network to the model
;


; Create switch for persistence of present proportions. Whena  turtle is first hatched,
; if it does not inheret from the parent it will be subject to present probabilities.

; MAY NEED TO DIFFERENTIATE BETWEE WATER BID/ASK AND SUGAR BID/ASK

; add arbitrageur
globals [
  gini-index-reserve
  lorenz-points
  number-of-transactions
  deaths
  age-of-death-list
  num-deaths
  deaths-this-tick
  ; sum-age-deaths
  ; mean-age-of-death
  mean-prices-for-last-fifty-ticks
  mean-price-memory-length
  mean-expected-price
  expected-price-variance

  prices-current-tick
  mean-price-current-tick
  mean-price-last-tick
  true-average-price-last-fifty-ticks
  number-of-transactions-last-fifty-ticks
  total-value-exchange-last-fifty-ticks

  sugar-consumed-this-tick
  water-consumed-this-tick
  total-sugar-consumed
  total-water-consumed
  winning-sugar-candidate
  winning-water-candidate

  ;;stats lists
  population
  total-sugar
  total-water
  sugar-minus-water
  ln-equilibrium-price
  mean-price
  mean-price-50-tick-average
  predicted-equilibrium-price
  sugar-demand-list
  sugar-supply-list
  price-variance
  sugar-turtles
  water-turtles
  mean-sugar-reserve-level
  mean-water-reserve-level
  basic
  switcher
  herder
  arbitrageur
  gini-coefficient-list
  final-output
  distance-from-equilibrium-price
  average-mutate-rate
  median-mutate-rate
  csv-name
  filename

  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  ;; Class Identifiers
  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  percent-basic
  percent-arbitrageur
  percent-herder
  percent-switcher

  basic-only
  basic-herder
  basic-arbitrageur
  basic-herder-arbitrageur
  switcher-only
  switcher-herder
  switcher-arbitrageur
  switcher-herder-arbitrageur

  percent-basic-only
  percent-basic-herder
  percent-basic-arbitrageur
  percent-basic-herder-arbitrageur
  percent-switcher-only
  percent-switcher-herder
  percent-switcher-arbitrageur
  percent-switcher-herder-arbitrageur

  ;; Wealth of Class

  wealth-basic
  wealth-switcher
  wealth-herder
  wealth-arbitrageur

  wealth-basic-only
  wealth-basic-herder
  wealth-basic-arbitrageur
  wealth-basic-herder-arbitrageur
  wealth-switcher-only
  wealth-switcher-herder
  wealth-switcher-arbitrageur
  wealth-switcher-herder-arbitrageur

  wealth-per-capita-basic-only
  wealth-per-capita-basic-herder
  wealth-per-capita-basic-arbitrageur
  wealth-per-capita-basic-herder-arbitrageur
  wealth-per-capita-switcher-only
  wealth-per-capita-switcher-herder
  wealth-per-capita-switcher-arbitrageur
  wealth-per-capita-switcher-herder-arbitrageur
]

turtles-own [
  self-mutate-rate
  sugar
  sugar-true?


  water           ;; the amount of sugar this turtle has
  water-true?

  wealth

  ticks-per-switch
  ticks-to-switch

  metabolism      ;; the amount of sugar that each turtles loses each tick
  vision          ;; the distance that this turtle can see in the horizontal and vertical directions
  vision-points
  trade-points    ;; the points that this turtle can see in relative to it's current position (based on vision)
  age             ;; the current age of this turtle (in ticks)
  max-age         ;; the age at which this turtle will die of natural causes

  reproductive?
  num-offspring
                  ;; used to clean up code
  price ;; sugar-bid-price = to bid-price, sugar-price = price
  water-price   ;; water-price = 1 / price
  pricing-strategy
  expected-sugar-price
  sugar-reserve-level
  water-reserve-level
  endogenous-rate-of-price-change


  past-sugar-price   ;; records price of last x trades
  price-difference
  price-memory
  max-wealth-trading-partner
  traded?           ;; did agent trade this period

  ;; agent strategies
  basic?
  herder?
  switcher?
  arbitrageur?

  transaction-price ;; price agreed upon for trade
  vert? ;; if turtle must change side of map, must choose to move vertically or horizontally this turn
 ;  Herders use these lists to record stats of known agents, and to copy

  who-list
  wealth-list
  basic?-list
  herder?-list
  switcher?-list
  arbitrageur?-list
  price-list
  water-price-list
  ; transaction-price-list
  ticks-per-switch-list
  max-desired-stock-list
  sugar-reserve-level-list
  water-reserve-level-list

  sugar-true?-list
  water-true?-list

]

patches-own [
  psugar           ;; the amount of sugar on this patch
  pwater           ;; water on patch
  max-psugar       ;; the maximum amount of sugar that can be on this patch
  max-pwater       ;; max water on patch
]

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Setup Procedures
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
to setup

  if maximum-sugar-endowment <= minimum-sugar-endowment [
    user-message "Oops: the maximum-sugar-endowment must be larger than the minimum-sugar-endowment"
    stop
  ]
  if maximum-water-endowment <= minimum-water-endowment [
    user-message "Oops: the maximum-water-endowment must be larger than the minimum-sugar-endowment"
    stop
  ]
  clear-all
  create-turtles initial-population [ turtle-setup ]
  setup-patches
  update-lorenz-and-gini
  setup-lists
  prep-csv-name
  reset-ticks
end

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Setup Patches
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to setup-patches
  file-open "sugar-map.txt"
  foreach sort patches
  [
    ask ?
    [
      ; these
      set max-psugar file-read
      set max-pwater max-psugar
      set psugar max-psugar
      set pwater max-pwater
    ]
  ]
  file-close
  ask patches[
    ifelse pycor <= pxcor[
      set max-psugar 0
    ]
    [
      set max-pwater 0
    ]
    patch-recolor

  ]
end

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Turtle Setup and Hatch Procedure
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;


to turtle-setup ;; turtle procedure
  set traded? false
  set num-offspring 0
  set-strategy
  ;; all agents start with a price-ratio of 1 sugar : 1 water
  set price 1
  set water-price 1 / price
  if herder? [set max-wealth-trading-partner 0]
  set vert? false
  set self-mutate-rate random-float mutate-rate

  move-to one-of patches with [not any? other turtles-here]
  set shape "circle"

  ; arbitrageur agents track past sugar prices
  set past-sugar-price 1
  ; arbitrageur must choose a length of time for considering past prices
  if arbitrageur?[ set price-memory 1 + random (max-price-memory - 1)]

  ; choose initial sugar and water holdings
  set sugar random-in-range minimum-sugar-endowment maximum-sugar-endowment
  set water random-in-range minimum-water-endowment maximum-water-endowment

  set metabolism 1 ; random-in-range 1 4
  set max-age random-in-range 600 1000
  set age 0
  set vision random-in-range 1 max-turtle-vision
  set-vision-and-trade-points
                                             ;; turtles can look horizontally and vertically up to vision patches
                                             ;; but cannot look diagonally at all

;  run visualization
end

to set-vision-and-trade-points
  set vision-points []
  set trade-points []
  foreach n-values vision [? + 1]
    [
      set vision-points sentence vision-points (list (list 0 ?) (list ? 0) (list 0 (- ?)) (list (- ?) 0))
    ]
    foreach n-values 1 [? + 1]
    [
      set trade-points sentence trade-points (list (list 0 ?) (list ? 0) (list 0 (- ?)) (list (- ?) 0))
    ]
end

to turtle-hatch  ;; turtle procedure
  set num-offspring 0
  set traded? false

  if mutate?
    [mutate]

  if reproductive? [
    ask myself[set num-offspring num-offspring + 1]
  ]

  ifelse age != max-age[
    set sugar maximum-sugar-endowment
    set water maximum-water-endowment
  ]
  [
    set sugar sugar
    set water water]
  set ticks-to-switch 0

  if herder? [set max-wealth-trading-partner 0 ]

  move-to one-of patches with [not any? other turtles-here]
  set shape "circle"

  set past-sugar-price 1


  set sugar random-in-range minimum-sugar-endowment maximum-sugar-endowment
  set water random-in-range minimum-water-endowment maximum-water-endowment


  set metabolism 1;random-in-range 1 4
  set max-age random-in-range 600 1000
  set age 0
  set vision max-turtle-vision; random-in-range 1 max-turtle-vision; random-in-range 1 6
                                                ;; turtles can look horizontally and vertically up to vision patches
                                                ;; but cannot look diagonally at all
  set vision-points []
  foreach n-values vision [? + 1]
  [
    set vision-points sentence vision-points (list (list 0 ?) (list ? 0) (list 0 (- ?)) (list (- ?) 0))
  ]
;  run visualization
end


to check-reproduction
  ifelse sugar-reserve-level > maximum-sugar-endowment * 2 and water-reserve-level > maximum-water-endowment * 2
  [set reproductive? true]
  [set reproductive? false]
end

to set-strategy

  ; choose agent strategies
  ifelse random-float 1 < initial-percent-basic [
    set basic? true
    set switcher? false
  ]
  [
    set basic? false
    set switcher? true
  ]

  ; switchers choose to mine water or sugar at a given time
  ifelse switcher? [
    ifelse  pycor < pxcor
      [set sugar-true? true
        set water-true? false]
      [set sugar-true? false
        set water-true? true]
  ]
  [
    ;set color red
    set sugar-true? false
    set water-true? false
  ]

  ; agent is switcher if not basic
  ifelse random-float 1 < initial-percent-herders
  [set herder? true]
  [set herder? false]


  ifelse random-float 1 < initial-percent-arbitrageurs
  [set arbitrageur? true]
  [set arbitrageur? false]
  ;; price that arbitrageur will switch commodities
  if endogenous-arbitrageur-choice? [
      set-expected-sugar-price

  ]

  set ticks-per-switch random max-ticks-per-switch

  ; the probablity of selecting a value falls as the value rises

  set sugar-reserve-level 1 + (random (sqrt max-reserve-level  - 1)) ^ 2
  set water-reserve-level 1 + (random (sqrt max-reserve-level  - 1)) ^ 2



;  ifelse random-float 1 < probability-dynamic-pricing
  set pricing-strategy 1
;  [set pricing-strategy 1]

  set endogenous-rate-of-price-change random-float max-rate-of-endogenous-price-change

end


to mutate
if random-float 1 < self-mutate-rate [
  set self-mutate-rate random-float mutate-rate
]
mutate-classes
;; scalar required due to limit of random-float size
;if random-float 1 < mutate-rate [set sugar-reserve-level ln (1 + round random-float (e ^ (max-reserve-level - 1))) * reserve-level-scalar]; (random (sqrt max-reserve-level  - 1)) ^ 2]
;if random-float 1 < mutate-rate [set water-reserve-level ln (1 + round random-float (e ^ (max-reserve-level - 1))) * reserve-level-scalar];(random (sqrt max-reserve-level  - 1)) ^ 2]

   if random-float 1 < self-mutate-rate [set sugar-reserve-level 1 + ( random (sqrt max-reserve-level  - 1))^ 2]
   if random-float 1 < self-mutate-rate [set water-reserve-level 1 + (random (sqrt max-reserve-level  - 1))^ 2]


;; Not in use for experiments in Dissertation
if mutate-pricing-strategy? [
  if random-float 1 < self-mutate-rate [
    ifelse pricing-strategy = 0
    [set pricing-strategy 1]
    [set pricing-strategy 0]
  ]
]


if mutate-price-rate? [
  if random-float 1 < self-mutate-rate [
    ; endogenous-rate-of-price-change governs the magnitude of change in bid-ask prices
    set endogenous-rate-of-price-change random-float max-rate-of-endogenous-price-change
  ]
]

if arbitrageur?[
  if random-float 1 < self-mutate-rate [
    set price-memory 1 + random (max-price-memory - 1)]
]

if endogenous-arbitrageur-choice?[
  if random-float 1 < self-mutate-rate [
    set-expected-sugar-price

  ]
]

end

to set-expected-sugar-price
  let logged-price random-float ln (1 / max-expected-sugar-price) + random-float ln max-expected-sugar-price
;  if logged-price < ln (1 / max-expected-sugar-price) [ set logged-price ln (1 / max-expected-sugar-price)]
  set expected-sugar-price e ^ (logged-price)  ;exp (random-normal 1 1)]
;  set expected-sugar-price 1 / max-expected-sugar-price + random-float (max-expected-sugar-price - 1 / max-expected-sugar-price)  ;exp (random-normal 1 1)]
end

to mutate-classes
  if mutate-basic?[
  if random-float 1 < self-mutate-rate [
 ifelse basic? = false
    [
      set basic? true
      set switcher? false]
    [
      set basic? false
      set switcher? true
      set ticks-per-switch random 100]
  ]
]
if mutate-herder?[
  if random-float 1 < self-mutate-rate [
    ifelse herder? = false
    [set herder? true]
    [set herder? false]
  ]
]

if mutate-arbitrageur? [
    if random-float 1 < self-mutate-rate [
      ifelse arbitrageur? = false
      [set arbitrageur? true]
      [set arbitrageur? false]
    ]
]
end
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Runtime Procedures
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to go
  reset-global-stats
  set prices-current-tick []
  set age-of-death-list []
  if not any? turtles [
    stop
  ]
  ask patches [
    patch-growback
    patch-recolor
  ]

  ; change metabolism if model includes shock
  if ticks = period-of-shock[
    set sugar-metabolism-scalar sugar-metabolism-scalar * (1 + shock-size)
    set water-metabolism-scalar water-metabolism-scalar / (1 + shock-size)
  ]
  ask turtles[
    set traded? false
    ; color represents class
    ; size represents wealth
    set-color-size

    ;Wealth is calculated as: good / (metabolism rate for good)
    update-wealth

    if Trade? [
     ; agents set bid-ask price
     set-prices
      ]

    turtle-move

    ;consume sugar, add good from patch to personal stock
    turtle-eat


    if Trade?[
      ; find neighbor, bargain, trade
      trade
    ]
    set age (age + 1)

    ; die if agent runs out of sugar or water
    if sugar <= 0 or water <= 0 [
      set age-of-death-list lput age age-of-death-list
      die
    ]
    if age > max-age [

      hatch 1
      [
        turtle-hatch
      ]
      set age-of-death-list lput age age-of-death-list
      die

    ]
    check-reproduction
    if reproductive? [
      if num-offspring < max-offspring [
        if sugar > sugar-reserve-level and water > water-reserve-level [
          if  sugar > maximum-sugar-endowment * 2 and water > maximum-water-endowment * 2 [

            hatch 1
            [
              turtle-hatch
            ]
            set sugar sugar - maximum-sugar-endowment
            set water water - maximum-water-endowment
          ]
        ]
      ]
    ]
    if herder?[set max-wealth-trading-partner .99 * max-wealth-trading-partner ]
;    run visualization

  ]
  reset-global-lists
  update-lorenz-and-gini
  prepare-behavior-space-output
  calculate-statistics
  write-csv csv-name final-output
  tick
end
    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
    ;; Turtle Exchange Procedures
    ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to set-prices
  if sugar > 0 and water > 0[

; dynamic pricing
  if price - endogenous-rate-of-price-change * (ln(sugar / sugar-reserve-level) - ln(water / water-reserve-level))  > 0 and pricing-strategy = 0 [
    set price price - endogenous-rate-of-price-change * (ln(sugar / sugar-reserve-level) - ln(water / water-reserve-level))
  ];set water-price 1 / price]
  ]


; static pricing
  if pricing-strategy = 1[
    if water > water-reserve-level[
      if price < (1 /  rate-of-price-change)[
        raise-price
      ]]
    if water < water-reserve-level  [
      if price > rate-of-price-change [
        lower-price]] ; must have enough sugar to enact bid
    if sugar > sugar-reserve-level[
      if price > rate-of-price-change [
        lower-price]] ; must have enough water to enact bid
    if sugar < sugar-reserve-level [
      if price < ( 1 / rate-of-price-change)[
        raise-price]]
  ]
  set water-price 1 / price
  adjust-target-reserve-levels
end

to adjust-target-reserve-levels
  ; reserve levels rise if there is excess of both goods relative to target
  if sugar - sugar-reserve-level > 0 and water - water-reserve-level > 0 [

    set sugar-reserve-level sugar-reserve-level * 1.01
    set water-reserve-level water-reserve-level * 1.01
  ]
  if sugar - sugar-reserve-level < 0 and water - water-reserve-level < 0 [
  ; reserve levels falls if there is shortage of both goods relative to target


    set sugar-reserve-level sugar-reserve-level / 1.01
    set water-reserve-level water-reserve-level / 1.01      ]
end

to lower-price
  set price price / (1 + random-float rate-of-price-change)
end

to raise-price
  set price price * (1 + random-float rate-of-price-change)
end

to set-color-size
if basic? [
  if herder? = false and arbitrageur? = false[ set color black]
  if herder? and arbitrageur? = false[set color grey]
  if herder? = false and arbitrageur? [ set color red]
  if herder? and arbitrageur?[set color orange]
]
if switcher?[
  if herder? = false and arbitrageur? = false[ set color brown]
  if herder? and arbitrageur? = false[set color yellow]
  if herder? = false and arbitrageur? [set color green]
  if herder? and arbitrageur?[set color lime]
]

set size .25 * ln(sugar + water)
end

to update-wealth
  set wealth sugar / sugar-metabolism-scalar + water / water-metabolism-scalar
end

to turtle-move ;; turtle procedure

  let move-candidates (patch-set patch-here (patches at-points vision-points) with [not any? turtles-here])

  ; movement for unaugmented Basic
  if sugar-true? = false and water-true? = false [
    let winning-candidate move-candidates with-max [psugar + pwater] ; choose the patch with the most resources
    if any? winning-candidate [
      move-to min-one-of winning-candidate [distance myself]
    ]
  ]

  ;; switcher and arbitrageur moves
    if sugar-true? [
      let possible-winners-sugar move-candidates with-max [psugar]
      ifelse any? possible-winners-sugar and max [psugar] of possible-winners-sugar > 0; and pcolor <= yellow + 4.9
      [
        move-to min-one-of possible-winners-sugar [distance myself]
      ]
      [
        if vert?[
          facexy [pxcor] of self [pycor] of self + 1
          fd vision
          set vert? false
        ]
        if vert? = false[
          facexy [pxcor] of self - 1  [pycor] of self
          fd vision
          set vert? true
        ]
      ]
    ]

    if water-true? [
      let possible-winners-water move-candidates with-max [pwater]
      ifelse any? possible-winners-water and max [pwater] of possible-winners-water > 0; and pcolor >= blue + .9
      [
        move-to min-one-of possible-winners-water [distance myself]
      ]
      [
        if vert?[

          facexy [pxcor] of self [pycor] of self - 1
          fd vision
          set vert? false
        ]

        if vert? = false[
          facexy [pxcor] of self + 1 [pycor] of self
          fd vision
          set vert? true
        ]
      ]
    ]
  update-switcher-arbitrageur-preferences
end


to trade

  ;; When trading, agents must  be sure to have enough resources to trade. This is defined in the while loop conditions
  ;; Also, not that the water price is the inverse of the (sugar) price. These are reestablished at the end of the run
  let trade-candidates (turtles at-points trade-points)

  ifelse global-trade? = false
  [ifelse trade-vision-distance? = false
    [set winning-sugar-candidate one-of trade-candidates with [(sugar - sugar-reserve-level) > 0]]
  [let vision-trade-candidates (turtles at-points vision-points)
    set winning-sugar-candidate one-of vision-trade-candidates with [(sugar - sugar-reserve-level) > 0]]]
   [ set winning-sugar-candidate one-of turtles with [sugar - sugar-reserve-level > 0]]

  if sugar < sugar-reserve-level and water > water-reserve-level [
    if winning-sugar-candidate != nobody [ ; running low on sugar, enough water to trade

      let candidate-price [price] of winning-sugar-candidate
      set-exchange-price price candidate-price


      ask winning-sugar-candidate [set transaction-price [transaction-price] of myself]
      execute-trades winning-sugar-candidate transaction-price true

    ]
  ]
;  ]
  ; the bid-price for water is the inverse of an agent's price for sugar (your willingness to accept for water is equal to willingnes to pay for sugar)
  ; the price for water is the inverse of an agent's bid-price for sugar


    ifelse global-trade? = false
  [ifelse trade-vision-distance? = false
    [set winning-water-candidate one-of trade-candidates with [(water - water-reserve-level) > 0]]
  [let vision-trade-candidates (turtles at-points vision-points)
    set winning-water-candidate one-of vision-trade-candidates with [(water - water-reserve-level) > 0]]]
   [ set winning-water-candidate one-of turtles with [water - water-reserve-level > 0]]

  if sugar > sugar-reserve-level and water < water-reserve-level [

    if winning-water-candidate != nobody [


      let candidate-price [water-price] of winning-water-candidate
      set-exchange-price water-price candidate-price




        ask winning-water-candidate [set transaction-price [transaction-price] of myself]

          execute-trades winning-water-candidate transaction-price false

      ]
    ]
  ;]
  ifelse show-price?
  [set label int transaction-price]
  [set label ""]
end

to execute-trades [ candidate p sugar? ]
    if p != 0 [

      trade-loop candidate p sugar?
      ask candidate [
        if herder? [
          if [wealth] of myself > max-wealth-trading-partner[
            if [wealth] of myself > wealth[

              set max-wealth-trading-partner [wealth] of myself
              set basic? [basic?] of myself
              set switcher? [switcher?] of myself
              set arbitrageur? [arbitrageur?] of myself
              if arbitrageur? [set expected-sugar-price [expected-sugar-price] of myself]
              set ticks-per-switch [ticks-per-switch] of myself
;              set sugar-reserve-level [sugar-reserve-level] of myself
;              set water-reserve-level [water-reserve-level] of myself

            ]
          ]
        ]
      ]


        if herder? [
          if [wealth] of candidate  > wealth[
            if [wealth] of candidate  > max-wealth-trading-partner[
              set max-wealth-trading-partner [wealth] of candidate
              set basic? [basic?] of candidate
              set switcher? [switcher?] of candidate
              set arbitrageur? [arbitrageur?] of candidate
              if arbitrageur? [set expected-sugar-price [expected-sugar-price] of candidate]
              set ticks-per-switch [ticks-per-switch] of candidate
;              set sugar-reserve-level [sugar-reserve-level] of candidate
;              set water-reserve-level [water-reserve-level] of candidate
            ]
          ]
        ]
          ;        record-prices
          set traded? true     ;; use traded? to identify transaction prices of period
          ask candidate[
            ;          record-prices
            set traded? true
          ]
      ]
end


to set-exchange-price[my-price candidate-price]
    if my-price > candidate-price [
      set transaction-price ln candidate-price + (random-float (ln (my-price) - ln candidate-price)) ; price in units of sugar per unit of water
      set transaction-price e ^ transaction-price]
end

to trade-loop[candidate p sugar?]
  ; agents trade one good at a time until the conditions for trading is no longer satifisfied
ifelse sugar?[
      while [[sugar] of candidate > [sugar-reserve-level] of candidate and water > water-reserve-level and water > p] ; winning candidate will trade if sugar above reserve level
     [
        set sugar sugar + 1
        set water water - p
        if arbitrageur?[record-prices price true]
        ask candidate [
          set sugar sugar - 1
          set water water + p
          if arbitrageur?[record-prices price true]

        ]
        set prices-current-tick lput ln p prices-current-tick
      ]
]

        [while[[water] of candidate > [water-reserve-level] of candidate and sugar > sugar-reserve-level and sugar > (p) ]
        [

          set water water + 1
          set sugar sugar - p
          if arbitrageur?[record-prices p false]
          ask winning-water-candidate [
            set water water - 1
            set sugar sugar + p
            if arbitrageur?[record-prices p false]
          ]
          set prices-current-tick lput ln (1 / p) prices-current-tick
        ]
        ]

end
to record-prices [p sugar?]
  ; expect sugar price is a belief about the price of sugar in equilibrium
  ; if the price of sugar is greater than I believe it should be, then price-difference < 0
  if not sugar?[ set p 1 / p]
  set past-sugar-price (p + past-sugar-price * price-memory) / (price-memory + 1)
  set price-difference (expected-sugar-price - past-sugar-price ); / expected-sugar-price
end

to update-switcher-arbitrageur-preferences
if switcher?[ set ticks-to-switch ticks-to-switch + 1
  if sugar-true? [
    if ticks-to-switch = ticks-per-switch[ ; or water < water-reserve-level [
      set sugar-true? false
      set water-true? true

      ;;switcher rate adjusts according to ratio of consumption-rates
      if economic-switching?[set ticks-per-switch ticks-per-switch  * (water-metabolism-scalar / sugar-metabolism-scalar)]
      set ticks-to-switch 0]
  ]
  if water-true? [
    if ticks-to-switch = ticks-per-switch
    [; or sugar < sugar-reserve-level [


      set sugar-true? true
      set water-true? false

      if economic-switching?[ set ticks-per-switch ticks-per-switch * (sugar-metabolism-scalar / water-metabolism-scalar)]

      set ticks-to-switch 0]
  ]
  ]
  if arbitrageur? [; and water > water-reserve-level and sugar > sugar-reserve-level[

    if endogenous-arbitrageur-choice? [
;      if sugar is more expensive then I think it should be in equilibrium, mine sugar
      ifelse price-difference < 0 [
        set sugar-true? true
        set water-true? false
      ]
      [ if price-difference > 0 [
        set sugar-true? false
        set water-true? true]
      ]
    ]
;    if endogenous-arbitrageur-choice? = false[
;      ifelse price-difference > 0[
;        set sugar-true? true
;        set water-true? false
;      ]
;      [
;        set sugar-true? false
;        set water-true? true
;      ]
;    ]
  ]
end




to-report max-item [ #wealth-list]
  let $max-value first #wealth-list
  let $max-item 0
  let $item 1
  foreach but-first #wealth-list
  [ if ? > $max-value [ set $max-value ? set $max-item $item]
    set $item $item + 1
  ]
  report $max-item
end

to turtle-eat ;; turtle procedure
              ;; metabolize some sugar, and eat all the sugar on the current patch
;
;  ifelse random 1 < .5 [
;  set sugar (sugar - metabolism * sugar-metabolism-scalar + psugar)
;  set psugar 0
;  set water (water - metabolism * water-metabolism-scalar + pwater)
;  set pwater 0]


  set water (water - metabolism * water-metabolism-scalar + pwater)
  set pwater 0
  set sugar (sugar - metabolism * sugar-metabolism-scalar + psugar)
  set psugar 0

  if sugar > 0 [set sugar-consumed-this-tick sugar-consumed-this-tick + sugar-metabolism-scalar * metabolism]
  if water > 0[set water-consumed-this-tick water-consumed-this-tick + water-metabolism-scalar * metabolism]

end

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; patch recovery
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to patch-recolor ;; patch procedure
                 ;; color patches based on the amount of sugar they have
  ifelse max-psugar > 0 [
    set pcolor (yellow + 4.9 - psugar)
  ]
  [
    ifelse max-pwater > 0 [
      set pcolor (blue + 4.9 - pwater)
    ]
    [
      set pcolor (yellow + 4.9)
    ]
  ]
end

to patch-growback ;; patch procedure
                  ;; gradually grow back all of the sugar for the patch
  set psugar min (list max-psugar (psugar + 1))
  set pwater min (list max-pwater (pwater + 1))
end

to setup-lists
  set mean-prices-for-last-fifty-ticks []
  set prices-current-tick []
  set number-of-transactions-last-fifty-ticks []
  set total-value-exchange-last-fifty-ticks []
;  set sugar-demand-list [][]
;  set sugar-supply-list [][]
  set ln-equilibrium-price ln (sugar-metabolism-scalar / water-metabolism-scalar)
end

to reset-global-stats
  set total-sugar-consumed total-sugar-consumed + sugar-consumed-this-tick
  set total-water-consumed total-water-consumed + water-consumed-this-tick
  set sugar-consumed-this-tick 0
  set water-consumed-this-tick 0
end

to reset-global-lists
;  set sugar-supply-list
;  set sugar-demand-list
  set num-deaths num-deaths + length age-of-death-list
  set deaths-this-tick length age-of-death-list
;  set sum-age-deaths sum-age-deaths + sum age-of-death-list
;  if num-deaths > 0 [set mean-age-of-death sum-age-deaths / num-deaths]
  set age-of-death-list []
  end
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Gini-coefficient, Lorenz Curve
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to update-lorenz-and-gini
  let num-people count turtles
  let sorted-wealths sort [sugar + water] of turtles
  let total-wealth sum sorted-wealths
  let wealth-sum-so-far 0
  let index 0
  set gini-index-reserve 0
  set lorenz-points []
  repeat num-people [
    set wealth-sum-so-far (wealth-sum-so-far + item index sorted-wealths)
    set lorenz-points lput ((wealth-sum-so-far / total-wealth) * 100) lorenz-points
    set index (index + 1)
    set gini-index-reserve
    gini-index-reserve +
    (index / num-people) -
    (wealth-sum-so-far / total-wealth)
  ]
end

;;
;; Utilities
;;

to-report random-in-range [low high]
  report low + random (high - low + 1)
end

;;
;; Visualization Procedures
;;

to no-visualization ;; turtle procedure
                    ;  set color red
end

to color-agents-by-vision ;; turtle procedure
  set color red - (vision - 3.5)
end

to color-agents-by-metabolism ;; turtle procedure
  set color red + (metabolism - 2.5)
end

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;Stats and Lists
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
to calculate-statistics
  ;; set median and variance of price and
  if length prices-current-tick > 0
  [
    set mean-price-current-tick mean prices-current-tick
    if length prices-current-tick > 1 [set price-variance variance prices-current-tick]
  ]

  ;
  if length prices-current-tick > 0
  [set mean-prices-for-last-fifty-ticks lput (mean-price-current-tick) mean-prices-for-last-fifty-ticks ]
  if length mean-prices-for-last-fifty-ticks > 0
  [set mean-price-50-tick-average mean mean-prices-for-last-fifty-ticks]

  if length mean-prices-for-last-fifty-ticks  > 50 [set mean-prices-for-last-fifty-ticks remove-item 0 mean-prices-for-last-fifty-ticks ]
  set number-of-transactions-last-fifty-ticks lput number-of-transactions number-of-transactions-last-fifty-ticks
  if length number-of-transactions-last-fifty-ticks > 50 [set number-of-transactions-last-fifty-ticks  remove-item 0 number-of-transactions-last-fifty-ticks ]

  set average-mutate-rate mean [self-mutate-rate] of turtles
  set median-mutate-rate median [self-mutate-rate] of turtles
  set number-of-transactions 0

  set basic-only count turtles with [basic? and herder? = false and arbitrageur? = false]
  set basic-herder count turtles with [basic? and herder? and arbitrageur? = false]
  set basic-arbitrageur count turtles with [basic? and herder? = false and arbitrageur?]
  set basic-herder-arbitrageur count turtles with [basic? and herder? and arbitrageur?]
  set switcher-only count turtles with [switcher? and herder? = false and arbitrageur? = false]
  set switcher-herder count turtles with [switcher? and herder? and arbitrageur? = false]
  set switcher-arbitrageur count turtles with [switcher? and herder? = false and arbitrageur?]
  set switcher-herder-arbitrageur count turtles with [switcher? and herder? and arbitrageur?]

;  set percent-basic-only basic-only / count turtles
;  set percent-basic-herder basic-herder / count turtles
;  set percent-basic-arbitrageur basic-arbitrageur / count turtles
;  set percent-basic-herder-arbitrageur basic-herder-arbitrageur / count turtles
;  set percent-switcher-only switcher-only / count turtles
;  set percent-switcher-herder switcher-herder / count turtles
;  set percent-switcher-arbitrageur switcher-arbitrageur / count turtles
;  set percent-switcher-herder-arbitrageur switcher-herder-arbitrageur / count turtles
;
  set basic count turtles with [basic? = true]
  set switcher count turtles with [basic? = false]
  set herder count turtles with [herder? = true]
  set arbitrageur count turtles with [arbitrageur? = true]

  set percent-basic basic / count turtles
  set percent-switcher 1 - percent-basic
  set percent-herder herder / count turtles
  set percent-arbitrageur arbitrageur /  count turtles

;  set excess-sugar-demand sum [sugar-reserve-level - sugar] of turtles with [sugar-reserve-level - sugar > 0 and (water - water-reserve-level) / price > sugar-reserve-level - sugar]
;  set excess-sugar-demand excess-sugar-demand +  sum [(water - water-reserve-level) / price] of turtles with [sugar-reserve-level - sugar > 0 and (water - water-reserve-level) / price < sugar-reserve-level - sugar]
;
;  set excess-sugar-supply sum [sugar - sugar-reserve-level] of turtles with [sugar - sugar-reserve-level > 0 ]
;
;
;  set excess-water-demand sum [water-reserve-level - water] of turtles with [water-reserve-level - water > 0 and (sugar - sugar-reserve-level) * price > water-reserve-level - water]
;  set excess-water-demand excess-water-demand +  sum [(sugar - sugar-reserve-level) * price] of turtles with [water-reserve-level - water > 0 and (sugar - sugar-reserve-level) * price < water-reserve-level - water]
;
;  set excess-water-supply sum [water - water-reserve-level] of turtles with [water - water-reserve-level > 0 ]

  set total-sugar sum [sugar] of turtles
  set total-water sum [water] of turtles
  set sugar-minus-water sum[sugar - water] of turtles
  set population count turtles
  set predicted-equilibrium-price sugar-metabolism-scalar / water-metabolism-scalar
  set sugar-turtles  count turtles with [sugar-true? = true]
  set water-turtles count turtles with [water-true? = true]
  ifelse count turtles with [arbitrageur?] > 1 [
    set mean-price-memory-length  mean [price-memory] of turtles with [arbitrageur?]
    set mean-expected-price mean [expected-sugar-price] of turtles with [arbitrageur?]
    set expected-price-variance variance [expected-sugar-price] of turtles with [arbitrageur?]
  ]
  [ifelse count turtles with [arbitrageur?] > 0[
    set mean-price-memory-length  [price-memory] of one-of turtles with [arbitrageur?]
    set mean-expected-price [expected-sugar-price] of one-of turtles with [arbitrageur?]
    set expected-price-variance 0
  ]
  [ set mean-price-memory-length  0
    set mean-expected-price 0
    set expected-price-variance 0
  ]
  ]






    if Trade?
    [
      set mean-sugar-reserve-level mean [sugar-reserve-level] of turtles
      set mean-water-reserve-level mean [water-reserve-level] of turtles
    ]

  if length prices-current-tick > 0
  [set distance-from-equilibrium-price (mean-price-current-tick) - ln (predicted-equilibrium-price)] ;; mean price is already logged


 ;; Wealth meaasured according to long-run equilibrium prices
  set wealth-basic-only sum [sugar] of turtles with [basic? and herder? = false and arbitrageur? = false] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic? and herder? = false and arbitrageur? = false] / water-metabolism-scalar
  set wealth-basic-herder sum [sugar] of turtles with [basic? and herder? and arbitrageur? = false] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic? and herder? and arbitrageur? = false] / water-metabolism-scalar
  set wealth-basic-arbitrageur sum [sugar] of turtles with [basic? and herder? = false and arbitrageur? ] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic? and herder? = false and arbitrageur? ] / water-metabolism-scalar
  set wealth-basic-herder-arbitrageur sum [sugar] of turtles with [basic? and herder? and arbitrageur? ] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic? and herder? and arbitrageur?] / water-metabolism-scalar

  set wealth-switcher-only sum [sugar] of turtles with [basic? = false and herder? = false and arbitrageur? = false] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic? = false and herder? = false and arbitrageur? = false] / water-metabolism-scalar
  set wealth-switcher-herder sum [sugar] of turtles with [basic? = false and herder? and arbitrageur? = false] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic? = false and herder? and arbitrageur? = false] / water-metabolism-scalar
  set wealth-switcher-arbitrageur sum [sugar] of turtles with [basic? = false and herder? = false and arbitrageur? ] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic? = false and herder? = false and arbitrageur? ] / water-metabolism-scalar
  set wealth-switcher-herder-arbitrageur sum [sugar] of turtles with [basic? = false and herder?  and arbitrageur? ] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic? = false and herder? and arbitrageur? ] / water-metabolism-scalar

  set wealth-basic sum [sugar] of turtles with [basic? ] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic?] / water-metabolism-scalar

  set wealth-switcher sum [sugar] of turtles with [basic? = false ] / sugar-metabolism-scalar
  + sum [water] of turtles with [basic? = false] / water-metabolism-scalar

  set wealth-herder sum [sugar] of turtles with [herder? ] / sugar-metabolism-scalar
  + sum [water] of turtles with [herder?] / water-metabolism-scalar

  set wealth-arbitrageur sum [sugar] of turtles with [arbitrageur? ] / sugar-metabolism-scalar
  + sum [water] of turtles with [arbitrageur?] / water-metabolism-scalar
end

to prepare-behavior-space-output


  set final-output (list
    sugar-metabolism-scalar
    water-metabolism-scalar
    mutate-rate
    shock-size
    total-sugar
    total-water
    mean-price-current-tick
    price-variance
    population
    average-mutate-rate
    median-mutate-rate


    sugar-consumed-this-tick
    water-consumed-this-tick
    distance-from-equilibrium-price
    mean-price-50-tick-average
    mean-sugar-reserve-level
    mean-water-reserve-level
    mean [endogenous-rate-of-price-change] of turtles
    mean-price-memory-length
    mean-expected-price
    expected-price-variance

    basic-only
    basic-herder
    basic-arbitrageur
    basic-herder-arbitrageur
    switcher-only
    switcher-herder
    switcher-arbitrageur
    switcher-herder-arbitrageur

;    percent-basic
;    percent-arbitrageur
;    percent-herder
;    percent-switcher

    basic
    switcher
    herder
    arbitrageur
    wealth-basic
    wealth-switcher
    wealth-herder
    wealth-arbitrageur

;    percent-basic-only
;    percent-basic-herder
;    percent-basic-arbitrageur
;    percent-basic-herder-arbitrageur
;    percent-switcher-only
;    percent-switcher-herder
;    percent-switcher-arbitrageur
;    percent-switcher-herder-arbitrageur
;

    wealth-basic-only
    wealth-basic-herder
    wealth-basic-arbitrageur
    wealth-basic-herder-arbitrageur
    wealth-switcher-only
    wealth-switcher-herder
    wealth-switcher-arbitrageur
    wealth-switcher-herder-arbitrageur

;    wealth-per-capita-basic-only
;    wealth-per-capita-basic-herder
;    wealth-per-capita-basic-arbitrageur
;    wealth-per-capita-basic-herder-arbitrageur
;    wealth-per-capita-switcher-only
;    wealth-per-capita-switcher-herder
;    wealth-per-capita-switcher-arbitrageur
;    wealth-per-capita-switcher-herder-arbitrageur

    )
end

to write-csv [ #filename #items ]
  ;; #items is a list of the data (or headers!) to write.
  if is-list? #items and not empty? #items
  [ file-open #filename
    ;; quote non-numeric items
    set #items map quote #items
    ;; print the items
    ;; if only one item, print it.
    ifelse length #items = 1 [ file-print first #items ]
    [file-print reduce [ (word ?1 "," ?2) ] #items]
    ;; close-up
    file-close
  ]
end

to prep-csv-name
  set csv-name "Results/0sugarscapemutate25shock5000movingreservelevels10final.csv"
  set csv-name replace-item 8 csv-name (word behaviorspace-run-number)
end

to-report quote [ #thing ]
  ifelse is-number? #thing
  [ report #thing ]
  [ report (word "\"" #thing "\"") ]
end

; Copyright 2009 Uri Wilensky.
; See Info tab for full copyright and license.
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80
Initial Class Proportions on LHS
11
0.0
1

SWITCH
788
147
913
180
global-trade?
global-trade?
1
1
-1000

SWITCH
787
182
962
215
trade-vision-distance?
trade-vision-distance?
1
1
-1000

SWITCH
730
33
903
66
economic-switching?
economic-switching?
1
1
-1000

PLOT
789
962
1303
1192
Mutate Rate
NIL
NIL
0.0
10.0
0.0
0.05
true
true
"" ""
PENS
"Average" 1.0 0 -16777216 true "" "plot average-mutate-rate"
"Median" 1.0 0 -7500403 true "" "plot median-mutate-rate"

PLOT
25
370
789
720
Prices
NIL
NIL
0.0
10.0
0.0
1.0
true
true
"" ""
PENS
"Log Mean Price" 1.0 2 -6565750 true "" "ifelse ticks > 200 [plot mean-price-current-tick]\n[plot 0]"
"50-Period RAP" 1.0 2 -16777216 true "" "ifelse ticks > 200 [plot mean mean-prices-for-last-fifty-ticks]\n[plot 0]"
"E(Price)" 1.0 0 -2674135 true "" "plot ln (sugar-metabolism-scalar / water-metabolism-scalar)"

PLOT
24
969
706
1189
Population
NIL
NIL
0.0
10.0
0.0
10.0
true
false
"" ""
PENS
"default" 1.0 0 -16777216 true "" "plot count turtles"

PLOT
27
719
788
969
Class Composition
NIL
NIL
0.0
10.0
0.0
0.4
true
true
"" ""
PENS
"Basic" 1.0 0 -16777216 true "" "plot percent-basic"
"Herder" 1.0 0 -7500403 true "" "plot percent-herder"
"Arbitrageur" 1.0 0 -2674135 true "" "plot percent-arbitrageur"
"Switcher" 1.0 0 -6459832 true "" "plot percent-switcher"

SLIDER
707
287
881
320
max-price-memory
max-price-memory
0
100
100
1
1
NIL
HORIZONTAL

PLOT
789
732
1293
962
Mean Reserve Levels
NIL
NIL
0.0
10.0
0.0
10.0
true
true
"" ""
PENS
"Sugar" 1.0 0 -16777216 true "" "plot mean-sugar-reserve-level"
"Water" 1.0 0 -7500403 true "" "plot mean-water-reserve-level"

PLOT
789
441
1467
733
Wealth Per Capita
NIL
NIL
0.0
10.0
0.0
10.0
true
true
"" ""
PENS
"Basic" 1.0 0 -16777216 true "" "if ticks > 0[ifelse basic > 0 [plot wealth-basic / basic]\n[plot 0]\n]"
"Herder" 1.0 0 -7500403 true "" "if ticks > 0[ifelse herder > 0 [plot wealth-herder / herder]\n[plot 0]\n]"
"Arbitrageur" 1.0 0 -2674135 true "" "if ticks > 0[ifelse arbitrageur > 0 [plot wealth-arbitrageur / arbitrageur]\n[plot 0]\n]"
"Switcher" 1.0 0 -6459832 true "" "if ticks > 0[ifelse switcher > 0 [plot wealth-switcher / switcher]\n[plot 0]\n]"
"Overall" 1.0 0 -5825686 true "" "if ticks > 0[plot (wealth-basic + wealth-switcher) / population]"

SLIDER
1420
149
1592
182
shock-size
shock-size
0
1
0.5
.01
1
NIL
HORIZONTAL

INPUTBOX
1420
56
1576
117
period-of-shock
7500
1
0
Number

TEXTBOX
1416
33
1631
59
Period that agent metabolism shifts
11
0.0
1

TEXTBOX
1418
118
1744
157
sugar-metabolism increases by magnitude of shock-size\nwater-metabolism decreases by magnitude of shock-size\n
11
0.0
1

PLOT
1422
826
2086
1240
Expected Equilibrium Sugar Price of Arbitrageurs
NIL
NIL
0.0
10.0
0.0
10.0
true
false
"" ""
PENS
"default" 1.0 0 -16777216 true "" "ifelse count turtles with [arbitrageur?] > 0\n[plot mean [expected-sugar-price] of turtles with [arbitrageur?]]\n[plot 0]"
"pen-1" 1.0 0 -7500403 true "" "ifelse count turtles with [arbitrageur?] > 0\n[plot mean [price-difference] of turtles with [arbitrageur?]]\n[plot 0]"
"pen-2" 1.0 0 -2674135 true "" "ifelse count turtles with [arbitrageur?] > 0\n[plot mean [past-sugar-price] of turtles with [arbitrageur?]]\n[plot 0]"

@#$#@#$#@


## WHAT IS IT?

This model extends Wilensky's third model of Sugarscape to include economic exchange by ecologically rational agents.

## HOW IT WORKS

Each patch contains some sugar or water, the maximum amount of which is predetermined. At each tick, each patch regains one unit of sugar or water, until it reaches the maximum amount.

The amount of sugar or water a patch currently contains is indicated by its color; the darker the yellow, the more sugar or water.

At setup, agents are placed at random within the world. Each agent can only see a certain distance horizontally and vertically. At each tick, each agent will move to the nearest unoccupied location within their vision range with the most sugar or water, and collect all the sugar or water there.  If its current location has as much or more sugar or water than any unoccupied location it can see, it will stay put.

Agents also use (and thus lose) a certain amount of sugar or water each tick, based on their metabolism rates. If an agent runs out of sugar or water, it dies.

Each agent also has a maximum age, which is assigned randomly from the range 60 to 100 ticks.  When the agent reaches an age beyond its maximum age, it dies.

Whenever an agent dies (either from starvation or old age), a new randomly initialized agent is created somewhere in the world; hence, in this model the global population count stays constant.

## HOW TO USE IT

The INITIAL-POPULATION slider sets how many agents are in the world.

The MINIMUM-SUGAR-ENDOWMENT and MAXIMUM-SUGAR-ENDOWMENT sliders set the initial amount of sugar ("wealth") each agent has when it hatches. The actual value is randomly chosen from the given range.

Press SETUP to populate the world with agents and import the sugar map data. GO will run the simulation continuously, while GO ONCE will run one tick.

The VISUALIZATION chooser gives different visualization options and may be changed while the GO button is pressed. When NO-VISUALIZATION is selected all the agents will be red. When COLOR-AGENTS-BY-VISION is selected the agents with the longest vision will be darkest and, similarly, when COLOR-AGENTS-BY-METABOLISM is selected the agents with the lowest metabolism will be darkest.


Choose the composition of agent rules by sliding the percent-basic slider. This choose
the number of agents that will be Basic, meaning that they search for the highest valued patch of sugar or water simultaneously. The remaining portion of the population will be Switchers. They look for one resource at a timea nd switch back and forth every time period.

Basics and Switchers may also be Herders and/or Entrepreneurs. These rule sets are not mutually exclusive. Set them using the percent-herders and percent-entrepreneurs sliders.


## THINGS TO TRY

The behavior space for this model is very large. Varying the parameters used will yield different types of patterns for prices, output, rule composition, etc...


How does the initial population affect the wealth distribution? How long does it take for the skewed distribution to emerge?

How is the wealth distribution affected when you change the initial endowments of wealth?

## NETLOGO FEATURES

All of the Sugarscape models create the world by using `file-read` to import data from an external file, `sugar-map.txt`. This file defines both the initial and the maximum sugar value for each patch in the world.

Since agents cannot see diagonally we cannot use `in-radius` to find the patches in the agents' vision.  Instead, we use `at-points`.

# DATA OUTPUT
Data is recorded in a csv. Code for this is at the end of the file under functions "prepare-behavior-space-output", "write-csv", and "quote [ #thing ]"

## RELATED MODELS

Other models in the NetLogo Sugarscape suite include:

* Sugarscape 1 Immediate Growback
* Sugarscape 2 Constant Growback
* Sugarscape 3 Wealth Inequality

For more explanation of the Lorenz curve and the Gini index, see the Info tab of the Wealth Distribution model.  (That model is also based on Epstein and Axtell's Sugarscape model, but more loosely.)

## CREDITS AND REFERENCES

Epstein, J. and Axtell, R. (1996). Growing Artificial Societies: Social Science from the Bottom Up.  Washington, D.C.: Brookings Institution Press.
 Li, J. and Wilensky, U. (2009).  NetLogo Sugarscape 3 Wealth Distribution model.  http://ccl.northwestern.edu/netlogo/models/Sugarscape3WealthDistribution.  Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.

* Wilensky, U. (1999). NetLogo. http://ccl.northwestern.edu/netlogo/. Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.

## COPYRIGHT AND LICENSE

Copyright 2009 Uri Wilensky.

![CC BY-NC-SA 3.0](http://ccl.northwestern.edu/images/creativecommons/byncsa.png)

This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License.  To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.

Commercial licenses are also available. To inquire about commercial licenses, please contact Uri Wilensky at uri@northwestern.edu.
@#$#@#$#@
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@#$#@#$#@
NetLogo 5.3
@#$#@#$#@
@#$#@#$#@
@#$#@#$#@
<experiments>
  <experiment name="experiment" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="100000"/>
    <metric>total-sugar-list</metric>
    <metric>total-water-list</metric>
    <metric>sugar-minus-water-list</metric>
    <metric>median-price-list</metric>
    <metric>price-variance-list</metric>
    <metric>mean-age-of-death-list</metric>
    <metric>sugar-turtles-list</metric>
    <metric>water-turtles-list</metric>
    <metric>median-sugar-reserve-level-list</metric>
    <metric>median-water-reserve-level-list</metric>
    <metric>percent-switcher-list</metric>
    <metric>percent-basic-list</metric>
    <metric>percent-herder-list</metric>
    <metric>percent-arbitrageur-list</metric>
    <metric>median-arb-wealth-list</metric>
    <metric>median-non-arb-wealth-list</metric>
    <metric>gini-coefficient-list</metric>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="50"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="herding?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="turtle-vision">
      <value value="6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="500"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-max-desired-stock">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-entrepreneurs">
      <value value="0"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Basic Only" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="50000"/>
    <metric>total-sugar-list</metric>
    <metric>total-water-list</metric>
    <metric>sugar-minus-water-list</metric>
    <metric>median-price-list</metric>
    <metric>price-variance-list</metric>
    <metric>sugar-turtles-list</metric>
    <metric>water-turtles-list</metric>
    <metric>median-sugar-reserve-level-list</metric>
    <metric>median-water-reserve-level-list</metric>
    <metric>percent-switcher-list</metric>
    <metric>percent-basic-list</metric>
    <metric>percent-herder-list</metric>
    <metric>percent-arbitrageur-list</metric>
    <metric>median-arb-wealth-list</metric>
    <metric>median-non-arb-wealth-list</metric>
    <metric>gini-coefficient-list</metric>
    <metric>basic-only</metric>
    <metric>basic-herder</metric>
    <metric>basic-entrepreneur</metric>
    <metric>basic-herder-entrepreneur</metric>
    <metric>switcher-only</metric>
    <metric>switcher-herder</metric>
    <metric>switcher-entrepreneur</metric>
    <metric>switcher-herder-entrepreneur</metric>
    <metric>wealth-basic-only</metric>
    <metric>wealth-basic-herder</metric>
    <metric>wealth-basic-entrepreneur</metric>
    <metric>wealth-basic-herder-entrepreneur</metric>
    <metric>wealth-switcher-only</metric>
    <metric>wealth-switcher-herder</metric>
    <metric>wealth-switcher-entrepreneur</metric>
    <metric>wealth-switcher-herder-entrepreneur</metric>
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    <enumeratedValueSet variable="show-price?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-entrepreneurs">
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    <enumeratedValueSet variable="sugar-metabolism-scalar">
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      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2500"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="herding?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
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    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-entrepreneur?">
      <value value="false"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Basic Entrepreneur" repetitions="10" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="25000"/>
    <metric>total-sugar-list</metric>
    <metric>total-water-list</metric>
    <metric>sugar-minus-water-list</metric>
    <metric>median-price-list</metric>
    <metric>price-variance-list</metric>
    <metric>sugar-turtles-list</metric>
    <metric>water-turtles-list</metric>
    <metric>median-sugar-reserve-level-list</metric>
    <metric>median-water-reserve-level-list</metric>
    <metric>percent-switcher-list</metric>
    <metric>percent-basic-list</metric>
    <metric>percent-herder-list</metric>
    <metric>percent-arbitrageur-list</metric>
    <metric>median-arb-wealth-list</metric>
    <metric>median-non-arb-wealth-list</metric>
    <metric>gini-coefficient-list</metric>
    <metric>basic-only</metric>
    <metric>basic-herder</metric>
    <metric>basic-entrepreneur</metric>
    <metric>basic-herder-entrepreneur</metric>
    <metric>switcher-only</metric>
    <metric>switcher-herder</metric>
    <metric>switcher-entrepreneur</metric>
    <metric>switcher-herder-entrepreneur</metric>
    <metric>wealth-basic-only</metric>
    <metric>wealth-basic-herder</metric>
    <metric>wealth-basic-entrepreneur</metric>
    <metric>wealth-basic-herder-entrepreneur</metric>
    <metric>wealth-switcher-only</metric>
    <metric>wealth-switcher-herder</metric>
    <metric>wealth-switcher-entrepreneur</metric>
    <metric>wealth-switcher-herder-entrepreneur</metric>
    <enumeratedValueSet variable="mutate-entrepreneur?">
      <value value="false"/>
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-entrepreneurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2500"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="herding?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="false"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Basic Herder" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="30000"/>
    <metric>total-sugar-list</metric>
    <metric>total-water-list</metric>
    <metric>sugar-minus-water-list</metric>
    <metric>median-price-list</metric>
    <metric>price-variance-list</metric>
    <metric>sugar-turtles-list</metric>
    <metric>water-turtles-list</metric>
    <metric>median-sugar-reserve-level-list</metric>
    <metric>median-water-reserve-level-list</metric>
    <metric>percent-switcher-list</metric>
    <metric>percent-basic-list</metric>
    <metric>percent-herder-list</metric>
    <metric>percent-arbitrageur-list</metric>
    <metric>median-arb-wealth-list</metric>
    <metric>median-non-arb-wealth-list</metric>
    <metric>gini-coefficient-list</metric>
    <metric>basic-only</metric>
    <metric>basic-herder</metric>
    <metric>basic-entrepreneur</metric>
    <metric>basic-herder-entrepreneur</metric>
    <metric>switcher-only</metric>
    <metric>switcher-herder</metric>
    <metric>switcher-entrepreneur</metric>
    <metric>switcher-herder-entrepreneur</metric>
    <metric>wealth-basic-only</metric>
    <metric>wealth-basic-herder</metric>
    <metric>wealth-basic-entrepreneur</metric>
    <metric>wealth-basic-herder-entrepreneur</metric>
    <metric>wealth-switcher-only</metric>
    <metric>wealth-switcher-herder</metric>
    <metric>wealth-switcher-entrepreneur</metric>
    <metric>wealth-switcher-herder-entrepreneur</metric>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-entrepreneurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2500"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="herding?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-entrepreneur?">
      <value value="false"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Endogenous Entrepreneurial Choice" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="100000"/>
    <metric>total-sugar-list</metric>
    <metric>total-water-list</metric>
    <metric>sugar-minus-water-list</metric>
    <metric>median-price-list</metric>
    <metric>price-variance-list</metric>
    <metric>sugar-turtles-list</metric>
    <metric>water-turtles-list</metric>
    <metric>median-sugar-reserve-level-list</metric>
    <metric>median-water-reserve-level-list</metric>
    <metric>percent-switcher-list</metric>
    <metric>percent-basic-list</metric>
    <metric>percent-herder-list</metric>
    <metric>percent-arbitrageur-list</metric>
    <metric>median-arb-wealth-list</metric>
    <metric>median-non-arb-wealth-list</metric>
    <metric>gini-coefficient-list</metric>
    <metric>basic-only</metric>
    <metric>basic-herder</metric>
    <metric>basic-entrepreneur</metric>
    <metric>basic-herder-entrepreneur</metric>
    <metric>switcher-only</metric>
    <metric>switcher-herder</metric>
    <metric>switcher-entrepreneur</metric>
    <metric>switcher-herder-entrepreneur</metric>
    <metric>wealth-basic-only</metric>
    <metric>wealth-basic-herder</metric>
    <metric>wealth-basic-entrepreneur</metric>
    <metric>wealth-basic-herder-entrepreneur</metric>
    <metric>wealth-switcher-only</metric>
    <metric>wealth-switcher-herder</metric>
    <metric>wealth-switcher-entrepreneur</metric>
    <metric>wealth-switcher-herder-entrepreneur</metric>
    <enumeratedValueSet variable="max-entrepreneur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="herding?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
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    <enumeratedValueSet variable="mutate-entrepreneur?">
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    <enumeratedValueSet variable="max-offspring">
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    <enumeratedValueSet variable="mutate-pricing-strategy?">
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    <enumeratedValueSet variable="percent-entrepreneurs">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="inheritance?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-basic?">
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      <value value="false"/>
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    <enumeratedValueSet variable="initial-population">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
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    <enumeratedValueSet variable="sugar-metabolism-scalar">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
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    <enumeratedValueSet variable="percent-herders">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
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    <enumeratedValueSet variable="endogenous-entrepreneurial-choice?">
      <value value="true"/>
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    <enumeratedValueSet variable="mutate?">
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    <enumeratedValueSet variable="percent-basic">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
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    <enumeratedValueSet variable="minimum-water-endowment">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
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    <enumeratedValueSet variable="water-metabolism-scalar">
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    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="experiment" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <timeLimit steps="25000"/>
    <metric>count turtles</metric>
    <enumeratedValueSet variable="max-entrepreneur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
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    <enumeratedValueSet variable="maximum-sugar-endowment">
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    <enumeratedValueSet variable="Trade?">
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    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="herding?">
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    <enumeratedValueSet variable="minimum-sugar-endowment">
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    <enumeratedValueSet variable="mutate-entrepreneur?">
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    <enumeratedValueSet variable="mutate-pricing-strategy?">
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    <enumeratedValueSet variable="percent-entrepreneurs">
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    <enumeratedValueSet variable="inheritance?">
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    <enumeratedValueSet variable="mutate-price-rate?">
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    <enumeratedValueSet variable="mutate-herder?">
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    <enumeratedValueSet variable="percent-herders">
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    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
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    <enumeratedValueSet variable="endogenous-entrepreneurial-choice?">
      <value value="true"/>
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    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
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    <enumeratedValueSet variable="percent-basic">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
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    <enumeratedValueSet variable="water-metabolism-scalar">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Global and Von-Neumann Trade" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="30000"/>
    <exitCondition>count turtles = 0</exitCondition>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
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    <enumeratedValueSet variable="endogenous-entrepreneurial-choice?">
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    <enumeratedValueSet variable="show-price?">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
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    <enumeratedValueSet variable="mutate-rate">
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    <enumeratedValueSet variable="percent-entrepreneurs">
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    </enumeratedValueSet>
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    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
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    <enumeratedValueSet variable="minimum-water-endowment">
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    <enumeratedValueSet variable="max-reserve-level">
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    <enumeratedValueSet variable="mutate-pricing-strategy?">
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    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
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      <value value="true"/>
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    <enumeratedValueSet variable="max-turtle-vision">
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    <enumeratedValueSet variable="probability-dynamic-pricing">
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    <enumeratedValueSet variable="visualization">
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    <enumeratedValueSet variable="mutate-entrepreneur?">
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      <value value="true"/>
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    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
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  </experiment>
  <experiment name="Vision Trade" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="10000"/>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
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    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
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    <enumeratedValueSet variable="endogenous-entrepreneurial-choice?">
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    <enumeratedValueSet variable="rate-of-price-change">
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    <enumeratedValueSet variable="minimum-sugar-endowment">
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    <enumeratedValueSet variable="maximum-sugar-endowment">
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    <enumeratedValueSet variable="global-trade?">
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    <enumeratedValueSet variable="water-metabolism-scalar">
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    <enumeratedValueSet variable="sugar-metabolism-scalar">
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    <enumeratedValueSet variable="max-offspring">
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    <enumeratedValueSet variable="maximum-water-endowment">
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    <enumeratedValueSet variable="mutate-rate">
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    <enumeratedValueSet variable="mutate?">
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    <enumeratedValueSet variable="initial-population">
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    <enumeratedValueSet variable="Trade?">
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    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="false"/>
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-entrepreneur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-entrepreneur?">
      <value value="false"/>
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="true"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Test" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="20000"/>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-entrepreneurial-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.8"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.8"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-entrepreneurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-entrepreneur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-entrepreneur?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="C2to1 Global and Von-Neumann Trade" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="10000"/>
    <exitCondition>count turtles = 0</exitCondition>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-entrepreneurial-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-entrepreneurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="false"/>
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-entrepreneur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-entrepreneur?">
      <value value="false"/>
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="HerderEntrepreneurLocal" repetitions="1" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <final>output-results</final>
    <timeLimit steps="10000"/>
    <exitCondition>count turtles = 0</exitCondition>
    <metric>sum [sugar] of turtles</metric>
    <metric>sum [water] of turtles</metric>
    <metric>mean prices-current-tick</metric>
    <metric>mean mean-prices-for-last-fifty-ticks</metric>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-entrepreneurial-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-entrepreneurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-entrepreneur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="1"/>
      <value value="2"/>
      <value value="3"/>
      <value value="4"/>
      <value value="5"/>
      <value value="6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-entrepreneur?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Vision 3 Von Neuman Trade" repetitions="10" runMetricsEveryStep="false">
    <setup>setup</setup>
    <go>go</go>
    <timeLimit steps="15000"/>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.45"/>
      <value value="0.5"/>
      <value value="0.55"/>
      <value value="0.6"/>
      <value value="0.65"/>
      <value value="0.7"/>
      <value value="0.75"/>
      <value value="0.8"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.45"/>
      <value value="0.5"/>
      <value value="0.55"/>
      <value value="0.6"/>
      <value value="0.65"/>
      <value value="0.7"/>
      <value value="0.75"/>
      <value value="0.8"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="3"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-arbitrageur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="true"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Vision 3 Global Trade" repetitions="15" runMetricsEveryStep="false">
    <setup>setup</setup>
    <go>go

if ticks = 12000 [
set sugar-metabolism-scalar sugar-metabolism-scalar * 2
]</go>
    <timeLimit steps="20000"/>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.5"/>
      <value value="0.525"/>
      <value value="0.55"/>
      <value value="0.575"/>
      <value value="0.6"/>
      <value value="0.625"/>
      <value value="0.65"/>
      <value value="0.675"/>
      <value value="0.7"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
      <value value="0.525"/>
      <value value="0.55"/>
      <value value="0.575"/>
      <value value="0.6"/>
      <value value="0.625"/>
      <value value="0.65"/>
      <value value="0.675"/>
      <value value="0.7"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="3"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-arbitrageur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="true"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Vision 3 Global Trade" repetitions="10" runMetricsEveryStep="false">
    <setup>setup</setup>
    <go>go</go>
    <timeLimit steps="15000"/>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.45"/>
      <value value="0.5"/>
      <value value="0.55"/>
      <value value="0.6"/>
      <value value="0.65"/>
      <value value="0.7"/>
      <value value="0.75"/>
      <value value="0.8"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.45"/>
      <value value="0.5"/>
      <value value="0.55"/>
      <value value="0.6"/>
      <value value="0.65"/>
      <value value="0.7"/>
      <value value="0.75"/>
      <value value="0.8"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="3"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-arbitrageur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="false"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Vision 3 Global Trade .5 .65 redo" repetitions="1" runMetricsEveryStep="false">
    <setup>setup</setup>
    <go>go</go>
    <timeLimit steps="15000"/>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.65"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="3"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-arbitrageur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="false"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Vision 3 Von Neuman Trade Basic Herder Arbitrageur" repetitions="5" runMetricsEveryStep="false">
    <setup>setup</setup>
    <go>go</go>
    <timeLimit steps="50"/>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.5"/>
      <value value="0.525"/>
      <value value="0.55"/>
      <value value="0.575"/>
      <value value="0.6"/>
      <value value="0.625"/>
      <value value="0.65"/>
      <value value="0.675"/>
      <value value="0.7"/>
      <value value="0.725"/>
      <value value="0.75"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
      <value value="0.075"/>
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-arbitrageur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="true"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="Vision 3 Global Trade .65 .8" repetitions="1" runMetricsEveryStep="false">
    <setup>setup</setup>
    <go>go</go>
    <timeLimit steps="15000"/>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.65"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.8"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="3"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.05"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="2240"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-arbitrageur-switching-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="visualization">
      <value value="&quot;no-visualization&quot;"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="false"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="experiment" repetitions="10" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go
if ticks = 10000[
set sugar-metabolism-scalar sugar-metabolism-scalar * 1.5
set water-metabolism-scalar water-metabolism-scalar / 1.5
]</go>
    <timeLimit steps="20000"/>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.2"/>
      <value value="0.21"/>
      <value value="0.22"/>
      <value value="0.23"/>
      <value value="0.24"/>
      <value value="0.25"/>
      <value value="0.26"/>
      <value value="0.27"/>
      <value value="0.28"/>
      <value value="0.29"/>
      <value value="0.3"/>
      <value value="0.31"/>
      <value value="0.32"/>
      <value value="0.33"/>
      <value value="0.34"/>
      <value value="0.35"/>
      <value value="0.36"/>
      <value value="0.37"/>
      <value value="0.38"/>
      <value value="0.39"/>
      <value value="0.4"/>
      <value value="0.41"/>
      <value value="0.42"/>
      <value value="0.43"/>
      <value value="0.44"/>
      <value value="0.45"/>
      <value value="0.46"/>
      <value value="0.47"/>
      <value value="0.48"/>
      <value value="0.49"/>
      <value value="0.5"/>
      <value value="0.51"/>
      <value value="0.52"/>
      <value value="0.53"/>
      <value value="0.54"/>
      <value value="0.55"/>
      <value value="0.56"/>
      <value value="0.57"/>
      <value value="0.58"/>
      <value value="0.59"/>
      <value value="0.6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.2"/>
      <value value="0.21"/>
      <value value="0.22"/>
      <value value="0.23"/>
      <value value="0.24"/>
      <value value="0.25"/>
      <value value="0.26"/>
      <value value="0.27"/>
      <value value="0.28"/>
      <value value="0.29"/>
      <value value="0.3"/>
      <value value="0.31"/>
      <value value="0.32"/>
      <value value="0.33"/>
      <value value="0.34"/>
      <value value="0.35"/>
      <value value="0.36"/>
      <value value="0.37"/>
      <value value="0.38"/>
      <value value="0.39"/>
      <value value="0.4"/>
      <value value="0.41"/>
      <value value="0.42"/>
      <value value="0.43"/>
      <value value="0.44"/>
      <value value="0.45"/>
      <value value="0.46"/>
      <value value="0.47"/>
      <value value="0.48"/>
      <value value="0.49"/>
      <value value="0.5"/>
      <value value="0.51"/>
      <value value="0.52"/>
      <value value="0.53"/>
      <value value="0.54"/>
      <value value="0.55"/>
      <value value="0.56"/>
      <value value="0.57"/>
      <value value="0.58"/>
      <value value="0.59"/>
      <value value="0.6"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="economic-switching?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-expected-sugar-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-price-memory">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="500"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="experiment" repetitions="30" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go
if ticks = 20000[
set sugar-metabolism-scalar sugar-metabolism-scalar * 1.5
set water-metabolism-scalar water-metabolism-scalar / 2
]</go>
    <timeLimit steps="100000"/>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="economic-switching?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-expected-sugar-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-price-memory">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="500"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="TTU Draft" repetitions="20" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go</go>
    <timeLimit steps="20000"/>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.25"/>
      <value value="0.3"/>
      <value value="0.35"/>
      <value value="0.4"/>
      <value value="0.45"/>
      <value value="0.5"/>
      <value value="0.55"/>
      <value value="0.6"/>
      <value value="0.65"/>
      <value value="0.7"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="shock-size">
      <value value="0.1"/>
      <value value="0.2"/>
      <value value="0.3"/>
      <value value="0.4"/>
      <value value="0.5"/>
      <value value="0.6"/>
      <value value="0.7"/>
      <value value="0.8"/>
      <value value="0.9"/>
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="economic-switching?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-expected-sugar-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-price-memory">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="500"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="varying shock size" repetitions="10" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go
if ticks = 15000[
set sugar-metabolism-scalar sugar-metabolism-scalar * (1 + shock-size)
set water-metabolism-scalar water-metabolism-scalar / (1 + shock-size)
]</go>
    <timeLimit steps="25000"/>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.41"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="shock-size">
      <value value="0.32"/>
      <value value="0.33"/>
      <value value="0.34"/>
      <value value="0.35"/>
      <value value="0.36"/>
      <value value="0.37"/>
      <value value="0.38"/>
      <value value="0.39"/>
      <value value="0.4"/>
      <value value="0.41"/>
      <value value="0.42"/>
      <value value="0.43"/>
      <value value="0.44"/>
      <value value="0.45"/>
      <value value="0.46"/>
      <value value="0.47"/>
      <value value="0.48"/>
      <value value="0.49"/>
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="economic-switching?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-expected-sugar-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-price-memory">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="500"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
  </experiment>
  <experiment name="varying shock size" repetitions="10" runMetricsEveryStep="true">
    <setup>setup</setup>
    <go>go
if ticks = 15000[
set sugar-metabolism-scalar sugar-metabolism-scalar * (1 + shock-size)
set water-metabolism-scalar water-metabolism-scalar / (1 + shock-size)
]</go>
    <timeLimit steps="25000"/>
    <enumeratedValueSet variable="sugar-metabolism-scalar">
      <value value="0.42"/>
      <value value="0.43"/>
      <value value="0.44"/>
      <value value="0.45"/>
      <value value="0.46"/>
      <value value="0.47"/>
      <value value="0.48"/>
      <value value="0.49"/>
      <value value="0.5"/>
      <value value="0.51"/>
      <value value="0.52"/>
      <value value="0.53"/>
      <value value="0.54"/>
      <value value="0.55"/>
      <value value="0.56"/>
      <value value="0.57"/>
      <value value="0.58"/>
      <value value="0.59"/>
      <value value="0.6"/>
      <value value="0.61"/>
      <value value="0.62"/>
      <value value="0.63"/>
      <value value="0.64"/>
      <value value="0.65"/>
      <value value="0.66"/>
      <value value="0.67"/>
      <value value="0.68"/>
      <value value="0.69"/>
      <value value="0.7"/>
      <value value="0.71"/>
      <value value="0.72"/>
      <value value="0.73"/>
      <value value="0.74"/>
      <value value="0.75"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="water-metabolism-scalar">
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="shock-size">
      <value value="0.01"/>
      <value value="0.02"/>
      <value value="0.03"/>
      <value value="0.04"/>
      <value value="0.05"/>
      <value value="0.06"/>
      <value value="0.07"/>
      <value value="0.08"/>
      <value value="0.09"/>
      <value value="0.1"/>
      <value value="0.11"/>
      <value value="0.12"/>
      <value value="0.13"/>
      <value value="0.14"/>
      <value value="0.15"/>
      <value value="0.16"/>
      <value value="0.17"/>
      <value value="0.18"/>
      <value value="0.19"/>
      <value value="0.2"/>
      <value value="0.21"/>
      <value value="0.22"/>
      <value value="0.23"/>
      <value value="0.24"/>
      <value value="0.25"/>
      <value value="0.26"/>
      <value value="0.27"/>
      <value value="0.28"/>
      <value value="0.29"/>
      <value value="0.3"/>
      <value value="0.31"/>
      <value value="0.32"/>
      <value value="0.33"/>
      <value value="0.34"/>
      <value value="0.35"/>
      <value value="0.36"/>
      <value value="0.37"/>
      <value value="0.38"/>
      <value value="0.39"/>
      <value value="0.4"/>
      <value value="0.41"/>
      <value value="0.42"/>
      <value value="0.43"/>
      <value value="0.44"/>
      <value value="0.45"/>
      <value value="0.46"/>
      <value value="0.47"/>
      <value value="0.48"/>
      <value value="0.49"/>
      <value value="0.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-water-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-rate-of-endogenous-price-change">
      <value value="1.5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-offspring">
      <value value="20"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-basic?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-rate">
      <value value="0.25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-pricing-strategy?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="probability-dynamic-pricing">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="economic-switching?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-expected-sugar-price">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-sugar-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-reserve-level">
      <value value="2000"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="Trade?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-price-memory">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="show-price?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-turtle-vision">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-basic">
      <value value="1"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-population">
      <value value="500"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="global-trade?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-arbitrageur?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="trade-vision-distance?">
      <value value="false"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="minimum-water-endowment">
      <value value="5"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="max-ticks-per-switch">
      <value value="100"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-herder?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="mutate-price-rate?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="endogenous-arbitrageur-choice?">
      <value value="true"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-arbitrageurs">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="maximum-sugar-endowment">
      <value value="25"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="initial-percent-herders">
      <value value="0"/>
    </enumeratedValueSet>
    <enumeratedValueSet variable="rate-of-price-change">
      <value value="0.1"/>
    </enumeratedValueSet>
  </experiment>
</experiments>
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