From 8764ee5539af790170684f036d1314f523a0d8bb Mon Sep 17 00:00:00 2001 From: hdoupe Date: Mon, 14 Jan 2019 14:49:33 -0500 Subject: [PATCH 1/3] Update taxcalc links --- RELEASES.md | 2 +- templates/dynamic/behavior.html | 9 +-------- templates/dynamic/dynamic_input_form.html | 9 +-------- templates/dynamic/elasticity.html | 9 +-------- templates/dynamic/elasticity_results.html | 12 +++--------- templates/dynamic/landing.html | 9 +-------- templates/dynamic/results.html | 9 +-------- templates/taxbrain/input_file.html | 9 +-------- templates/taxbrain/input_form.html | 9 +-------- 9 files changed, 11 insertions(+), 66 deletions(-) diff --git a/RELEASES.md b/RELEASES.md index b3ac0474..7d2f653e 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -14,7 +14,7 @@ Release 1.7.7 on 2019-01-14 - [#951](https://github.com/ospc-org/ospc.org/pull/951) - Use pslmodels channel for webapp Dockerfile - Hank Doupe **Bug Fixes** -- None +- [#952](https://github.com/ospc-org/ospc.org/pull/952) - Updates Tax-Calculator Links - Hank Doupe Release 1.7.6 on 2018-11-09 diff --git a/templates/dynamic/behavior.html b/templates/dynamic/behavior.html index 98c80607..fc433e8a 100644 --- a/templates/dynamic/behavior.html +++ b/templates/dynamic/behavior.html @@ -74,14 +74,7 @@

Static modeling (Step 1)

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

Accuracy notes

diff --git a/templates/dynamic/dynamic_input_form.html b/templates/dynamic/dynamic_input_form.html index a3ead92e..512ad100 100644 --- a/templates/dynamic/dynamic_input_form.html +++ b/templates/dynamic/dynamic_input_form.html @@ -73,14 +73,7 @@

Static modeling (Step 1)

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

Accuracy notes

diff --git a/templates/dynamic/elasticity.html b/templates/dynamic/elasticity.html index bfbea0ef..9134df93 100644 --- a/templates/dynamic/elasticity.html +++ b/templates/dynamic/elasticity.html @@ -73,14 +73,7 @@

Static modeling (Step 1)

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

Accuracy notes

diff --git a/templates/dynamic/elasticity_results.html b/templates/dynamic/elasticity_results.html index e33eee37..8b219218 100644 --- a/templates/dynamic/elasticity_results.html +++ b/templates/dynamic/elasticity_results.html @@ -72,17 +72,11 @@

Static modeling (Step 1)

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

+

-

Accuracy notes

+ Accuracy notes

The Python code that performs the tax calculations has been validated in a number of ways. First, Tax-Calculator results for a number of tax filing diff --git a/templates/dynamic/landing.html b/templates/dynamic/landing.html index bd7296c6..64872050 100644 --- a/templates/dynamic/landing.html +++ b/templates/dynamic/landing.html @@ -74,14 +74,7 @@

Static modeling (Step 1)

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

Accuracy notes

diff --git a/templates/dynamic/results.html b/templates/dynamic/results.html index f6bb52a1..5749dbbe 100644 --- a/templates/dynamic/results.html +++ b/templates/dynamic/results.html @@ -72,14 +72,7 @@

Static modeling (Step 1)

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

Accuracy notes

diff --git a/templates/taxbrain/input_file.html b/templates/taxbrain/input_file.html index dee544e7..07441a66 100644 --- a/templates/taxbrain/input_file.html +++ b/templates/taxbrain/input_file.html @@ -77,14 +77,7 @@

Static modeling (Step 1)

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

Accuracy notes

diff --git a/templates/taxbrain/input_form.html b/templates/taxbrain/input_form.html index 01f4816a..d1a46642 100644 --- a/templates/taxbrain/input_form.html +++ b/templates/taxbrain/input_form.html @@ -78,14 +78,7 @@

Static modeling (Step 1)

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

Accuracy notes

From 0aae6db246c33ebf549c8454f8e18d1b50dd87fe Mon Sep 17 00:00:00 2001 From: hdoupe Date: Mon, 14 Jan 2019 14:52:13 -0500 Subject: [PATCH 2/3] Update open-source-economics links --- RELEASES.md | 2 +- flatblocks.json | 2 +- templates/btax/header.html | 6 ++--- templates/btax/input_form.html | 12 ++++----- templates/btax/not_avail.html | 2 +- templates/btax/results.html | 2 +- templates/dynamic/behavior.html | 12 ++++----- templates/dynamic/dynamic_input_form.html | 20 +++++++------- templates/dynamic/elasticity.html | 12 ++++----- templates/dynamic/elasticity_results.html | 12 ++++----- templates/dynamic/landing.html | 10 +++---- templates/dynamic/results.html | 12 ++++----- templates/pages/apps.html | 26 +++++++++---------- templates/pages/docs.html | 18 ++++++------- templates/pages/home_content.html | 4 +-- templates/taxbrain/header.html | 20 +++++++------- .../taxbrain/includes/params/inputs/file.html | 2 +- templates/taxbrain/input_file.html | 10 +++---- templates/taxbrain/input_form.html | 12 ++++----- templates/taxbrain/not_avail.html | 2 +- templates/taxbrain/results.html | 2 +- 21 files changed, 100 insertions(+), 100 deletions(-) diff --git a/RELEASES.md b/RELEASES.md index 7d2f653e..19c92cf8 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -14,7 +14,7 @@ Release 1.7.7 on 2019-01-14 - [#951](https://github.com/ospc-org/ospc.org/pull/951) - Use pslmodels channel for webapp Dockerfile - Hank Doupe **Bug Fixes** -- [#952](https://github.com/ospc-org/ospc.org/pull/952) - Updates Tax-Calculator Links - Hank Doupe +- [#952](https://github.com/ospc-org/ospc.org/pull/952) - Updates links - Hank Doupe Release 1.7.6 on 2018-11-09 diff --git a/flatblocks.json b/flatblocks.json index da33cffb..eba39e11 100644 --- a/flatblocks.json +++ b/flatblocks.json @@ -1 +1 @@ -[{"fields": {"content": "

Policymakers increasingly rely on computational models to predict the budgetary and broader economic impacts of current and proposed policies, especially those involving taxes and entitlements. Estimates from these models often determine a bill\u2019s success or failure in the legislative process and public sphere.

\r\n\r\n

The Open Source Policy Center's first focus is supporting community-driven projects that analyze the budgetary and broader economic impact of taxes. These models are completely transparent and freely available to researchers across the country. OSPC also provides an easy-to-use online interface that allows students, policymakers, journalists, and informed citizens to interact with the models and learn for themselves about the effects of policies.

\r\n", "slug": "about_bottom", "header": ""}, "pk": 1, "model": "flatblocks.flatblock"}, {"fields": {"content": "

The Open Source Policy Center is making policy analysis more transparent, trustworthy, and collaborative by supporting open-source projects that build cutting-edge economic models.

\r\n", "slug": "about_top", "header": ""}, "pk": 2, "model": "flatblocks.flatblock"}, {"fields": {"content": "

A LABORATORY FOR PREDICTING THE EFFECTS OF PUBLIC POLICY

", "slug": "home_top_overview", "header": ""}, "pk": 3, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Transparent

", "slug": "home_left_subtitle", "header": ""}, "pk": 4, "model": "flatblocks.flatblock"}, {"fields": {"content": "

All of the projects we incubate are freely available and we encourage peer review.

", "slug": "home_left_blurb", "header": ""}, "pk": 5, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Accessible

", "slug": "home_center_subtitle", "header": ""}, "pk": 6, "model": "flatblocks.flatblock"}, {"fields": {"content": "

You can run the models yourself through our webapp interface or by downloading the code and using it with your own data.

", "slug": "home_center_blurb", "header": ""}, "pk": 7, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Collaborative

", "slug": "home_right_subtitle", "header": ""}, "pk": 8, "model": "flatblocks.flatblock"}, {"fields": {"content": "

We welcome anyone, whether you are a modeler, software developer, economist, or policy analyst, to help improve and expand the suite of models.

", "slug": "home_right_blurb", "header": ""}, "pk": 9, "model": "flatblocks.flatblock"}, {"fields": {"content": "The code repository", "slug": "home_left_link", "header": ""}, "pk": 10, "model": "flatblocks.flatblock"}, {"fields": {"content": "Our first web app", "slug": "home_center_link", "header": ""}, "pk": 11, "model": "flatblocks.flatblock"}, {"fields": {"content": "Getting started guide", "slug": "home_right_link", "header": ""}, "pk": 12, "model": "flatblocks.flatblock"}, {"fields": {"content": "

A simulator to analyze the budgetary impact of taxes.

", "slug": "home_taxbrain_subtitle", "header": ""}, "pk": 13, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Over the coming months we will release many new features on TaxBrain. Sign up for our mailing list to learn more about the project.

", "slug": "home_taxbrain_blurb", "header": ""}, "pk": 14, "model": "flatblocks.flatblock"}, {"fields": {"content": "

We document the economics, data, and software behind our models.

", "slug": "home_contributor_left_blurb", "header": ""}, "pk": 15, "model": "flatblocks.flatblock"}, {"fields": {"content": "

All of our code is available on Github.com.

", "slug": "home_contributor_center_blurb", "header": ""}, "pk": 16, "model": "flatblocks.flatblock"}, {"fields": {"content": "View Documentation", "slug": "home_contributor_left_link", "header": ""}, "pk": 17, "model": "flatblocks.flatblock"}, {"fields": {"content": "Visit Our Code Repositories", "slug": "home_contributor_center_link", "header": ""}, "pk": 18, "model": "flatblocks.flatblock"}, {"fields": {"content": "Join the Modeling Community", "slug": "home_contributor_right_link", "header": ""}, "pk": 19, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Start with our getting started guide.

", "slug": "home_contributor_right_blurb", "header": ""}, "pk": 20, "model": "flatblocks.flatblock"}, {"fields": {"content": "

The Open Source Policy Center is dedicated to encouraging good policy by making policy analysis more transparent, accessible, and collaborative.

", "slug": "footer_blurb", "header": ""}, "pk": 21, "model": "flatblocks.flatblock"}, {"fields": {"content": "

A platform for accessing open-source tax models.

", "slug": "taxbrain_subheader", "header": ""}, "pk": 22, "model": "flatblocks.flatblock"}, {"fields": {"content": "

", "slug": "taxbrain_exemptions_blurb", "header": ""}, "pk": 23, "model": "flatblocks.flatblock"}, {"fields": {"content": "

", "slug": "taxbrain_standarddeduction_blurb", "header": ""}, "pk": 24, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_itemized_blurb", "header": ""}, "pk": 25, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_adjustments_blurb", "header": ""}, "pk": 26, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_socsec_blurb", "header": ""}, "pk": 27, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_credit_blurb", "header": ""}, "pk": 28, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_investment_taxes_blurb", "header": ""}, "pk": 29, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Background information coming soon.

", "slug": "taxbrain_personal_blurb", "header": ""}, "pk": 30, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_amt_blurb", "header": ""}, "pk": 31, "model": "flatblocks.flatblock"}, {"fields": {"content": "

TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

\r\n\r\n\r\n\r\n

Throughout this process, if you have a question about how to use TaxBrain or interpret the results, if you want to make a suggestion for making the interface or underlying models better, or if you discover a bug, please send a message to our mailing list, which you can join at list.ospc.org/mailman/listinfo/users_list.ospc.org.

\r\n\r\n

Disclaimer\r\n\r\n

Proper use of this tool and description of that use is ultimately your responsibility. If you plan on publishing your results, I highly recommend that you confirm with the community that you are using the tools properly and interpreting the results correctly before you publish them. If you have a compelling reason not to leave a public note on the mailing list, email me at matt.jensen@aei.org.

\r\n\r\n

Results will change as the underlying models improve. A fundamental reason for adopting open source methods in this project is to let people from all backgrounds contribute to the models that our society uses to assess economic policy; when community-contributed improvements are incorporated, the models will produce different results.

\r\n\r\n

Neither the Open Source Policy Center nor the American Enterprise Institute maintain institutional positions, and the results from models accessible via the TaxBrain interface should not be attributed directly to OSPC or AEI. A suggested acknowledgement is, \"We thank AEI for making TaxBrain available, but we bear sole responsibility for the use of the models and any conclusions drawn.\"

\r\n\r\n

- Matt Jensen, managing director and founder of the Open Source Policy Center

", "slug": "taxbrain_what_is_taxbrain_dropdown", "header": ""}, "pk": 32, "model": "flatblocks.flatblock"}, {"fields": {"content": "

A platform for accessing OSPC's open-source tax models.

", "slug": "taxbrain_footer", "header": ""}, "pk": 33, "model": "flatblocks.flatblock"}, {"fields": {"content": "

User tips

\r\n\r\n

Toggle the CPI control to indicate whether a parameter should be adjusted for inflation.

\r\n\r\n

Enter comma-separated values into a field to indicate the multiple years of tax law. \r\nDO NOT use commas as thousands separators.

\r\n\r\n\r\n\r\n", "slug": "taxbrain_get_started_blurb", "header": ""}, "pk": 34, "model": "flatblocks.flatblock"}, {"fields": {"content": "Distribution and Revenue Tables for Federal Individual Income Taxes", "slug": "taxbrain_results_header", "header": ""}, "pk": 35, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Caution: this model is highly preliminary!

\r\n

OG-USA is an open source economic dynamic general equilibrium model intended to evaluate U.S. tax policy. The model code and detailed documentation is available at http://www.github.com/open-source-economics/OG-USA.

\r\n\r\n

OG-USA is an overlapping-generations model comprised of households, perfectly competitive firms, and a government with a balanced budget requirement. Firms make a static profit maximization decision in which they rent capital and hire labor to maximize profits given a Cobb-Douglas production function. The government levies taxes on individuals and makes lump sum transfers to individuals according to a balanced budget constraint. In the version deployed through TaxBrain, the model is scaled-down to have a single, representative household for each generation and simple tax functions. A detailed description of the model is available here.

\r\n\r\n

It is important to note a few caveats for OG-USA and the results available on TaxBrain:

\r\n\r\n
    \r\n
  1. This is an initial release and there are almost certainly bugs to be worked out. If you see anything that doesn\u2019t make sense, please let us know by sending a message to the mailing list, which you can join at list.ospc.org/mailman/listinfo/users_list.ospc.org.
    2. \r\n
  2. Solving the model requires that it attain a steady state. One implication of this requirement is that the government\u2019s budget constraint must be satisfied in the long run. Therefore, the model must specify how tax cuts are financed. The assumptions about how the budget is closed have substantial impact on the predictions of the model (see Table 2 of this JCT document). In OG-USA, we specify a very simple government that contemporaneously redistributes all revenues in a lump-sum manner. Tax cuts are financed by reducing these transfers. Users should recognize that this assumption tends to provide an upper bound on the macroeconomic benefits of tax cuts, as other possible financing methods for tax cuts tend to yield smaller benefits. We are in the process of allowing users to alter the financing assumption.
    3. \r\n
  3. Because there is a representative household for each cohort, OG-USA cannot currently evaluate the distributional effects of tax policy within a cohort (although one could do intergenerational distributional analysis in this framework). We are in the process of adding heterogeneous households in each cohort.
    4. \r\n
  4. The production side of the model is very simplified. It does not allow the user to evaluate business taxation or interactions between personal and business taxation. We are in the process of expanding the production side of the model to allow for the evaluation of business taxation.
    5. \r\n
  5. The results are for a specific set of parameters values, which are outlined in our detailed documentation. While we have tried to make reasonable parameterizations based on empirical analysis, some users might disagree with these values. The ability to modify parameters through the web application is limited, but users who wish to consider adjustments may download the source code and do so.
    6. \r\n
\r\n\r\n

OG-USA interacts with Tax-Calculator, an open source economic microsimulation model available at www.github.com/open-source-economics/tax-calculator. It does so in the following way. The user enters changes to the individual income tax code he wishes to evaluate via the TaxBrain interface. These tax policy parameters are then used to recompute marginal and effective tax rates for individuals in the microdata underlying Tax-Calculator. These marginal and effective tax rates are then use to estimate marginal and effective tax rates faced by the households in OG-USA, thereby determining how model households respond to changes in tax policy.

\r\n\r\n

How to cite

\r\n\r\n

These results were generated with the community developed and open source economic model OG-USA, accessed via version xx.xx.xx of TaxBrain, an interface hosted by AEI's Open Source Policy Center. The exact simulation modeled here is available at www.ospc.org/taxbrain/dynamic/results/NNNNNN. The results are solely the responsibility of the author.

\r\n\r\n

\r\nProject Maintainers (OG-USA modeling)*:\r\n

\r\n

\r\n

*These members review open source contributions for the OG-USA modeling effort.\r\n\r\n

**The contact information for Professors DeBacker and Evans will be updated in the coming months to reflect their new positions at the University of South Carolina and University of Chicago, respectively.

\r\n", "slug": "dynamic_get_started_blurb", "header": ""}, "pk": 36, "model": "flatblocks.flatblock"}, {"fields": {"content": "

In the context of policy analysis, dynamic modeling incorporates behavior that affects the aggregate output of the economy. This broad definition includes nearly every type of economic analysis except for the approach most often used in the analysis of tax and spending policy proposals by agencies in the federal government.

\r\n\r\n

There is no single \"accepted\" way to estimate the dynamic effects of policy reforms, so TaxBrain is designed to encourage users to try several approaches and to grapple seriously with the limitations and tradeoffs of each approach. Please pay close attention to the descriptions of each model and send a message to the TaxBrain community mailing list if you have questions. You can join the mailing list at list.ospc.org/mailman/listinfo/users_list.ospc.org.

\r\n\r\n

The open source project maintainers are working hard to expand the capabilities of these models and would appreciate a hand if there are limitations that frustrate you.

\r\n\r\n

Finally, if you are an economist with a dynamic model that you would like to make available on TaxBrain, please write to the mailing list or to me at matt.jensen@aei.org.

\r\n\r\n

- Matt Jensen, managing director and founder of the Open Source Policy Center

\r\n\r\n", "slug": "dynamic_landing_blurb", "header": ""}, "pk": 37, "model": "flatblocks.flatblock"}, {"fields": {"content": "

The partial equilibrium (PE) model answers the question \"How would taxpayer behavior (income and deductions) influence the estimate if all other prices in the economy could stay the same?\" It relies on estimates of the elasticity of taxable income with respect to tax policy and is useful for summarizing the power and direction of a reform's effect on the economy.

\r\n\r\n

The actual effects of a tax policy would generally differ from that predicted by the PE model in a manner that depends on other elasticities and legislative changes. In particular the elasticity of demand for labor, deductible goods, savings, investment, monetary policy, and other factors will moderate the outcome. Because the PE model does not include those effects, it is not a reliable estimate of a tax policy's full effects.

\r\n\r\n

John Creedy's \"The Elasticity of Taxable Income: A Non-Technical Summary\" shows how to use the PE behavioral responses for determining the efficiency effect of a tax reform. In \"The Elasticity of Taxable Income with Respect to Marginal Tax Rates: A Critical Review,\" Saez, Slemrod and Giertz review various estimates of the critical parameters. The Joint Committee on Taxation (JCT) and Congressional Budget Office (CBO) estimate the persistent capital gains elasticity in their \"New Evidence on the Tax Elasticity of Capital Gains\".

\r\n\r\n

The PE approach is similar to the \"conventional\" modeling conducted by government agencies for the budgeting process in that both approaches allow for taxpayers to change their behavior in response to policy reforms. The difference is that the PE model allows those behavioral changes to influence Gross National Product (GNP), whereas JCT and the Office of Tax Analysis (OTA) at the Treasury Department hold GNP fixed.

\r\n\r\n

The PE model is implemented by applying the behavioral elasticities at the individual taxpayer level. The source code for the implementation is available in the behavior module of the open source Tax-Calculator model . \r\n

\r\n\r\n\r\n

\r\nCore Maintainers (PE modeling)*:\r\n

\r\n

\r\n\r\n

*These members review open source contributions to the sections of the Tax-Calculator repository relevant to PE modeling.

", "slug": "dynamic_behavior_get_started_blurb", "header": ""}, "pk": 38, "model": "flatblocks.flatblock"}, {"fields": {"content": "

This approach answers the question, \"how would taxpayer behavior (income and deductions) affect revenue if all other prices in the economy could stay the same?\"

", "slug": "dynamic_behavioral_blurb", "header": ""}, "pk": 39, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "elastic_dynamic_subheader", "header": ""}, "pk": 40, "model": "flatblocks.flatblock"}, {"fields": {"content": "

This approach harnesses econometric estimates of the historical relationship between tax policy and the macroeconomy to predict the effect of tax reforms on growth.

", "slug": "dynamic_macro_el_blurb", "header": ""}, "pk": 41, "model": "flatblocks.flatblock"}, {"fields": {"content": "

What is TaxBrain?

\r\n

TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

\r\n\r\n\r\n\r\n

Throughout this process, if you have a question about how to use TaxBrain or interpret the results, if you want to make a suggestion for making the interface or underlying models better, or if you discover a bug, please send a message to our mailing list, which you can join at list.ospc.org/mailman/listinfo/users_list.ospc.org.

\r\n\r\n

Disclaimer\r\n\r\n

Proper use of this tool and description of that use is ultimately your responsibility. If you plan on publishing your results, I highly recommend that you confirm with the community that you are using the tools properly and interpreting the results correctly before you publish them. If you have a compelling reason not to leave a public note on the mailing list, email me at matt.jensen@aei.org.

\r\n\r\n

Results will change as the underlying models improve. A fundamental reason for adopting open source methods in this project is to let people from all backgrounds contribute to the models that our society uses to assess economic policy; when community-contributed improvements are incorporated, the models will produce different results.

\r\n\r\n

Neither the Open Source Policy Center nor the American Enterprise Institute maintain institutional positions, and the results from models accessible via the TaxBrain interface should not be attributed directly to OSPC or AEI. A suggested acknowledgement is, \"We thank AEI for making TaxBrain available, but we bear sole responsibility for the use of the models and any conclusions drawn.\"

\r\n\r\n

- Matt Jensen, managing director and founder of the Open Source Policy Center

\r\n\r\n
\r\n\r\n

Static modeling (Step 1)

\r\n\r\n

Static tax analysis entails computing individuals' tax changes under the assumption that behavior does not change in response to tax policy. Static analyses are useful for understanding the mechanistic effects of tax policy changes, and they form the basis to which behavior is applied for dynamic analyses. \r\n\r\n

TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

\r\n\r\n\r\n

Transparency and Replicability

\r\n\r\n

In addition to relying on open source models, we are devoted to making it easy for reviewers to understand the models even if they can't understand the source code or don't have access to the underlying data. Toward that end we produce several additional reports to enhance transparency, peer review, collaboration and a scientific advancement.

\r\n\r\n

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

\r\n\r\n\r\n\r\n

Accuracy notes

\r\n\r\n

The Python code that performs the tax calculations has been validated in a\r\nnumber of ways. First, Tax-Calculator results for a number of tax filing\r\nunits have been compared to hand calculations performed using IRS tax\r\nforms. Second, Tax-Calculator results for a large sample of tax filing units\r\nhave been compared to results for the same sample generated by a\r\ndetailed SAS program developed by Dan\r\nFeenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

\r\n\r\n

Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

\r\n\r\n

\r\nCore Maintainers (static modeling)*:\r\n

\r\n

\r\n

These members have \"write access\" to one or both of the core static modeling repositories, Tax-Calculator and TaxData, and work as a team to determine which open source contributions are accepted.

", "slug": "taxbrain_above_get_started_blurb", "header": ""}, "pk": 42, "model": "flatblocks.flatblock"}, {"fields": {"content": "

This approach harnesses econometric estimates of the historic relationship between tax policy and the macroeconomy to predict the effect of tax reforms on growth.

\r\n\r\n

In particular, this model relies on estimates of how GDP responds to changes in the average after tax rate on wage income across all taxpayers (one minus the average marginal tax rate, or 1 - AMTR). These estimates are derived from calculations of income-weighted marginal tax rates under the baseline and reform using Tax-Calculator with baseline data from TaxData. An example of the implementation is available here.

\r\n\r\n

Evidence for this parameter can be found in Barro and Redlick's \"Macroeconomic Effects from Government Purchases and Taxes.\" In particular, Barro and Redlick find that a 1 percentage point increase in the AMTR leads to a 0.54 percent increase in GDP. Evaluated at the sample mean, this translates to an elasticity of GDP with respect to the average after tax rate of 0.36.

\r\n\r\n

Karel Mertens' \"Marginal Tax Rates and Income: New Time Series Evidence\" contains additional evidence, focused on tax cuts affecting the upper part of the income distribution.

\r\n\r\n

Both Mertens and Karel tentatively conclude that the effect stems from marginal rather than average tax rates.

\r\n\r\n\r\n

\r\nCore Maintainer (Macro elasticity modeling)*:\r\n

\r\n

\r\n\r\n*This member reviews open source contributions relevant to the macro elasticity modeling portions of the Tax-Calculator repository. ", "slug": "dynamic_elasticity_get_started_blurb", "header": ""}, "pk": 43, "model": "flatblocks.flatblock"}, {"fields": {"content": "

This approach answers the question, \"how does tax policy affect macroeconomic aggregates and prices?\"", "slug": "dynamic_olg_blurb", "header": ""}, "pk": 44, "model": "flatblocks.flatblock"}] \ No newline at end of file +[{"fields": {"content": "

Policymakers increasingly rely on computational models to predict the budgetary and broader economic impacts of current and proposed policies, especially those involving taxes and entitlements. Estimates from these models often determine a bill\u2019s success or failure in the legislative process and public sphere.

\r\n\r\n

The Open Source Policy Center's first focus is supporting community-driven projects that analyze the budgetary and broader economic impact of taxes. These models are completely transparent and freely available to researchers across the country. OSPC also provides an easy-to-use online interface that allows students, policymakers, journalists, and informed citizens to interact with the models and learn for themselves about the effects of policies.

\r\n", "slug": "about_bottom", "header": ""}, "pk": 1, "model": "flatblocks.flatblock"}, {"fields": {"content": "

The Open Source Policy Center is making policy analysis more transparent, trustworthy, and collaborative by supporting open-source projects that build cutting-edge economic models.

\r\n", "slug": "about_top", "header": ""}, "pk": 2, "model": "flatblocks.flatblock"}, {"fields": {"content": "

A LABORATORY FOR PREDICTING THE EFFECTS OF PUBLIC POLICY

", "slug": "home_top_overview", "header": ""}, "pk": 3, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Transparent

", "slug": "home_left_subtitle", "header": ""}, "pk": 4, "model": "flatblocks.flatblock"}, {"fields": {"content": "

All of the projects we incubate are freely available and we encourage peer review.

", "slug": "home_left_blurb", "header": ""}, "pk": 5, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Accessible

", "slug": "home_center_subtitle", "header": ""}, "pk": 6, "model": "flatblocks.flatblock"}, {"fields": {"content": "

You can run the models yourself through our webapp interface or by downloading the code and using it with your own data.

", "slug": "home_center_blurb", "header": ""}, "pk": 7, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Collaborative

", "slug": "home_right_subtitle", "header": ""}, "pk": 8, "model": "flatblocks.flatblock"}, {"fields": {"content": "

We welcome anyone, whether you are a modeler, software developer, economist, or policy analyst, to help improve and expand the suite of models.

", "slug": "home_right_blurb", "header": ""}, "pk": 9, "model": "flatblocks.flatblock"}, {"fields": {"content": "The code repository", "slug": "home_left_link", "header": ""}, "pk": 10, "model": "flatblocks.flatblock"}, {"fields": {"content": "Our first web app", "slug": "home_center_link", "header": ""}, "pk": 11, "model": "flatblocks.flatblock"}, {"fields": {"content": "Getting started guide", "slug": "home_right_link", "header": ""}, "pk": 12, "model": "flatblocks.flatblock"}, {"fields": {"content": "

A simulator to analyze the budgetary impact of taxes.

", "slug": "home_taxbrain_subtitle", "header": ""}, "pk": 13, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Over the coming months we will release many new features on TaxBrain. Sign up for our mailing list to learn more about the project.

", "slug": "home_taxbrain_blurb", "header": ""}, "pk": 14, "model": "flatblocks.flatblock"}, {"fields": {"content": "

We document the economics, data, and software behind our models.

", "slug": "home_contributor_left_blurb", "header": ""}, "pk": 15, "model": "flatblocks.flatblock"}, {"fields": {"content": "

All of our code is available on Github.com.

", "slug": "home_contributor_center_blurb", "header": ""}, "pk": 16, "model": "flatblocks.flatblock"}, {"fields": {"content": "View Documentation", "slug": "home_contributor_left_link", "header": ""}, "pk": 17, "model": "flatblocks.flatblock"}, {"fields": {"content": "Visit Our Code Repositories", "slug": "home_contributor_center_link", "header": ""}, "pk": 18, "model": "flatblocks.flatblock"}, {"fields": {"content": "Join the Modeling Community", "slug": "home_contributor_right_link", "header": ""}, "pk": 19, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Start with our getting started guide.

", "slug": "home_contributor_right_blurb", "header": ""}, "pk": 20, "model": "flatblocks.flatblock"}, {"fields": {"content": "

The Open Source Policy Center is dedicated to encouraging good policy by making policy analysis more transparent, accessible, and collaborative.

", "slug": "footer_blurb", "header": ""}, "pk": 21, "model": "flatblocks.flatblock"}, {"fields": {"content": "

A platform for accessing open-source tax models.

", "slug": "taxbrain_subheader", "header": ""}, "pk": 22, "model": "flatblocks.flatblock"}, {"fields": {"content": "

", "slug": "taxbrain_exemptions_blurb", "header": ""}, "pk": 23, "model": "flatblocks.flatblock"}, {"fields": {"content": "

", "slug": "taxbrain_standarddeduction_blurb", "header": ""}, "pk": 24, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_itemized_blurb", "header": ""}, "pk": 25, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_adjustments_blurb", "header": ""}, "pk": 26, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_socsec_blurb", "header": ""}, "pk": 27, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_credit_blurb", "header": ""}, "pk": 28, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_investment_taxes_blurb", "header": ""}, "pk": 29, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Background information coming soon.

", "slug": "taxbrain_personal_blurb", "header": ""}, "pk": 30, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "taxbrain_amt_blurb", "header": ""}, "pk": 31, "model": "flatblocks.flatblock"}, {"fields": {"content": "

TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

\r\n\r\n\r\n\r\n

Throughout this process, if you have a question about how to use TaxBrain or interpret the results, if you want to make a suggestion for making the interface or underlying models better, or if you discover a bug, please send a message to our mailing list, which you can join at list.ospc.org/mailman/listinfo/users_list.ospc.org.

\r\n\r\n

Disclaimer\r\n\r\n

Proper use of this tool and description of that use is ultimately your responsibility. If you plan on publishing your results, I highly recommend that you confirm with the community that you are using the tools properly and interpreting the results correctly before you publish them. If you have a compelling reason not to leave a public note on the mailing list, email me at matt.jensen@aei.org.

\r\n\r\n

Results will change as the underlying models improve. A fundamental reason for adopting open source methods in this project is to let people from all backgrounds contribute to the models that our society uses to assess economic policy; when community-contributed improvements are incorporated, the models will produce different results.

\r\n\r\n

Neither the Open Source Policy Center nor the American Enterprise Institute maintain institutional positions, and the results from models accessible via the TaxBrain interface should not be attributed directly to OSPC or AEI. A suggested acknowledgement is, \"We thank AEI for making TaxBrain available, but we bear sole responsibility for the use of the models and any conclusions drawn.\"

\r\n\r\n

- Matt Jensen, managing director and founder of the Open Source Policy Center

", "slug": "taxbrain_what_is_taxbrain_dropdown", "header": ""}, "pk": 32, "model": "flatblocks.flatblock"}, {"fields": {"content": "

A platform for accessing OSPC's open-source tax models.

", "slug": "taxbrain_footer", "header": ""}, "pk": 33, "model": "flatblocks.flatblock"}, {"fields": {"content": "

User tips

\r\n\r\n

Toggle the CPI control to indicate whether a parameter should be adjusted for inflation.

\r\n\r\n

Enter comma-separated values into a field to indicate the multiple years of tax law. \r\nDO NOT use commas as thousands separators.

\r\n\r\n\r\n\r\n", "slug": "taxbrain_get_started_blurb", "header": ""}, "pk": 34, "model": "flatblocks.flatblock"}, {"fields": {"content": "Distribution and Revenue Tables for Federal Individual Income Taxes", "slug": "taxbrain_results_header", "header": ""}, "pk": 35, "model": "flatblocks.flatblock"}, {"fields": {"content": "

Caution: this model is highly preliminary!

\r\n

OG-USA is an open source economic dynamic general equilibrium model intended to evaluate U.S. tax policy. The model code and detailed documentation is available at http://www.github.com/PSLmodels/OG-USA.

\r\n\r\n

OG-USA is an overlapping-generations model comprised of households, perfectly competitive firms, and a government with a balanced budget requirement. Firms make a static profit maximization decision in which they rent capital and hire labor to maximize profits given a Cobb-Douglas production function. The government levies taxes on individuals and makes lump sum transfers to individuals according to a balanced budget constraint. In the version deployed through TaxBrain, the model is scaled-down to have a single, representative household for each generation and simple tax functions. A detailed description of the model is available here.

\r\n\r\n

It is important to note a few caveats for OG-USA and the results available on TaxBrain:

\r\n\r\n
    \r\n
  1. This is an initial release and there are almost certainly bugs to be worked out. If you see anything that doesn\u2019t make sense, please let us know by sending a message to the mailing list, which you can join at list.ospc.org/mailman/listinfo/users_list.ospc.org.
    2. \r\n
  2. Solving the model requires that it attain a steady state. One implication of this requirement is that the government\u2019s budget constraint must be satisfied in the long run. Therefore, the model must specify how tax cuts are financed. The assumptions about how the budget is closed have substantial impact on the predictions of the model (see Table 2 of this JCT document). In OG-USA, we specify a very simple government that contemporaneously redistributes all revenues in a lump-sum manner. Tax cuts are financed by reducing these transfers. Users should recognize that this assumption tends to provide an upper bound on the macroeconomic benefits of tax cuts, as other possible financing methods for tax cuts tend to yield smaller benefits. We are in the process of allowing users to alter the financing assumption.
    3. \r\n
  3. Because there is a representative household for each cohort, OG-USA cannot currently evaluate the distributional effects of tax policy within a cohort (although one could do intergenerational distributional analysis in this framework). We are in the process of adding heterogeneous households in each cohort.
    4. \r\n
  4. The production side of the model is very simplified. It does not allow the user to evaluate business taxation or interactions between personal and business taxation. We are in the process of expanding the production side of the model to allow for the evaluation of business taxation.
    5. \r\n
  5. The results are for a specific set of parameters values, which are outlined in our detailed documentation. While we have tried to make reasonable parameterizations based on empirical analysis, some users might disagree with these values. The ability to modify parameters through the web application is limited, but users who wish to consider adjustments may download the source code and do so.
    6. \r\n
\r\n\r\n

OG-USA interacts with Tax-Calculator, an open source economic microsimulation model available at www.github.com/PSLmodels/tax-calculator. It does so in the following way. The user enters changes to the individual income tax code he wishes to evaluate via the TaxBrain interface. These tax policy parameters are then used to recompute marginal and effective tax rates for individuals in the microdata underlying Tax-Calculator. These marginal and effective tax rates are then use to estimate marginal and effective tax rates faced by the households in OG-USA, thereby determining how model households respond to changes in tax policy.

\r\n\r\n

How to cite

\r\n\r\n

These results were generated with the community developed and open source economic model OG-USA, accessed via version xx.xx.xx of TaxBrain, an interface hosted by AEI's Open Source Policy Center. The exact simulation modeled here is available at www.ospc.org/taxbrain/dynamic/results/NNNNNN. The results are solely the responsibility of the author.

\r\n\r\n

\r\nProject Maintainers (OG-USA modeling)*:\r\n

\r\n

\r\n

*These members review open source contributions for the OG-USA modeling effort.\r\n\r\n

**The contact information for Professors DeBacker and Evans will be updated in the coming months to reflect their new positions at the University of South Carolina and University of Chicago, respectively.

\r\n", "slug": "dynamic_get_started_blurb", "header": ""}, "pk": 36, "model": "flatblocks.flatblock"}, {"fields": {"content": "

In the context of policy analysis, dynamic modeling incorporates behavior that affects the aggregate output of the economy. This broad definition includes nearly every type of economic analysis except for the approach most often used in the analysis of tax and spending policy proposals by agencies in the federal government.

\r\n\r\n

There is no single \"accepted\" way to estimate the dynamic effects of policy reforms, so TaxBrain is designed to encourage users to try several approaches and to grapple seriously with the limitations and tradeoffs of each approach. Please pay close attention to the descriptions of each model and send a message to the TaxBrain community mailing list if you have questions. You can join the mailing list at list.ospc.org/mailman/listinfo/users_list.ospc.org.

\r\n\r\n

The open source project maintainers are working hard to expand the capabilities of these models and would appreciate a hand if there are limitations that frustrate you.

\r\n\r\n

Finally, if you are an economist with a dynamic model that you would like to make available on TaxBrain, please write to the mailing list or to me at matt.jensen@aei.org.

\r\n\r\n

- Matt Jensen, managing director and founder of the Open Source Policy Center

\r\n\r\n", "slug": "dynamic_landing_blurb", "header": ""}, "pk": 37, "model": "flatblocks.flatblock"}, {"fields": {"content": "

The partial equilibrium (PE) model answers the question \"How would taxpayer behavior (income and deductions) influence the estimate if all other prices in the economy could stay the same?\" It relies on estimates of the elasticity of taxable income with respect to tax policy and is useful for summarizing the power and direction of a reform's effect on the economy.

\r\n\r\n

The actual effects of a tax policy would generally differ from that predicted by the PE model in a manner that depends on other elasticities and legislative changes. In particular the elasticity of demand for labor, deductible goods, savings, investment, monetary policy, and other factors will moderate the outcome. Because the PE model does not include those effects, it is not a reliable estimate of a tax policy's full effects.

\r\n\r\n

John Creedy's \"The Elasticity of Taxable Income: A Non-Technical Summary\" shows how to use the PE behavioral responses for determining the efficiency effect of a tax reform. In \"The Elasticity of Taxable Income with Respect to Marginal Tax Rates: A Critical Review,\" Saez, Slemrod and Giertz review various estimates of the critical parameters. The Joint Committee on Taxation (JCT) and Congressional Budget Office (CBO) estimate the persistent capital gains elasticity in their \"New Evidence on the Tax Elasticity of Capital Gains\".

\r\n\r\n

The PE approach is similar to the \"conventional\" modeling conducted by government agencies for the budgeting process in that both approaches allow for taxpayers to change their behavior in response to policy reforms. The difference is that the PE model allows those behavioral changes to influence Gross National Product (GNP), whereas JCT and the Office of Tax Analysis (OTA) at the Treasury Department hold GNP fixed.

\r\n\r\n

The PE model is implemented by applying the behavioral elasticities at the individual taxpayer level. The source code for the implementation is available in the behavior module of the open source Tax-Calculator model . \r\n

\r\n\r\n\r\n

\r\nCore Maintainers (PE modeling)*:\r\n

\r\n

\r\n\r\n

*These members review open source contributions to the sections of the Tax-Calculator repository relevant to PE modeling.

", "slug": "dynamic_behavior_get_started_blurb", "header": ""}, "pk": 38, "model": "flatblocks.flatblock"}, {"fields": {"content": "

This approach answers the question, \"how would taxpayer behavior (income and deductions) affect revenue if all other prices in the economy could stay the same?\"

", "slug": "dynamic_behavioral_blurb", "header": ""}, "pk": 39, "model": "flatblocks.flatblock"}, {"fields": {"content": "", "slug": "elastic_dynamic_subheader", "header": ""}, "pk": 40, "model": "flatblocks.flatblock"}, {"fields": {"content": "

This approach harnesses econometric estimates of the historical relationship between tax policy and the macroeconomy to predict the effect of tax reforms on growth.

", "slug": "dynamic_macro_el_blurb", "header": ""}, "pk": 41, "model": "flatblocks.flatblock"}, {"fields": {"content": "

What is TaxBrain?

\r\n

TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

\r\n\r\n\r\n\r\n

Throughout this process, if you have a question about how to use TaxBrain or interpret the results, if you want to make a suggestion for making the interface or underlying models better, or if you discover a bug, please send a message to our mailing list, which you can join at list.ospc.org/mailman/listinfo/users_list.ospc.org.

\r\n\r\n

Disclaimer\r\n\r\n

Proper use of this tool and description of that use is ultimately your responsibility. If you plan on publishing your results, I highly recommend that you confirm with the community that you are using the tools properly and interpreting the results correctly before you publish them. If you have a compelling reason not to leave a public note on the mailing list, email me at matt.jensen@aei.org.

\r\n\r\n

Results will change as the underlying models improve. A fundamental reason for adopting open source methods in this project is to let people from all backgrounds contribute to the models that our society uses to assess economic policy; when community-contributed improvements are incorporated, the models will produce different results.

\r\n\r\n

Neither the Open Source Policy Center nor the American Enterprise Institute maintain institutional positions, and the results from models accessible via the TaxBrain interface should not be attributed directly to OSPC or AEI. A suggested acknowledgement is, \"We thank AEI for making TaxBrain available, but we bear sole responsibility for the use of the models and any conclusions drawn.\"

\r\n\r\n

- Matt Jensen, managing director and founder of the Open Source Policy Center

\r\n\r\n
\r\n\r\n

Static modeling (Step 1)

\r\n\r\n

Static tax analysis entails computing individuals' tax changes under the assumption that behavior does not change in response to tax policy. Static analyses are useful for understanding the mechanistic effects of tax policy changes, and they form the basis to which behavior is applied for dynamic analyses. \r\n\r\n

TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

\r\n\r\n\r\n

Transparency and Replicability

\r\n\r\n

In addition to relying on open source models, we are devoted to making it easy for reviewers to understand the models even if they can't understand the source code or don't have access to the underlying data. Toward that end we produce several additional reports to enhance transparency, peer review, collaboration and a scientific advancement.

\r\n\r\n

Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

\r\n\r\n\r\n\r\n

Accuracy notes

\r\n\r\n

The Python code that performs the tax calculations has been validated in a\r\nnumber of ways. First, Tax-Calculator results for a number of tax filing\r\nunits have been compared to hand calculations performed using IRS tax\r\nforms. Second, Tax-Calculator results for a large sample of tax filing units\r\nhave been compared to results for the same sample generated by a\r\ndetailed SAS program developed by Dan\r\nFeenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

\r\n\r\n

Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

\r\n\r\n

\r\nCore Maintainers (static modeling)*:\r\n

\r\n

\r\n

These members have \"write access\" to one or both of the core static modeling repositories, Tax-Calculator and TaxData, and work as a team to determine which open source contributions are accepted.

", "slug": "taxbrain_above_get_started_blurb", "header": ""}, "pk": 42, "model": "flatblocks.flatblock"}, {"fields": {"content": "

This approach harnesses econometric estimates of the historic relationship between tax policy and the macroeconomy to predict the effect of tax reforms on growth.

\r\n\r\n

In particular, this model relies on estimates of how GDP responds to changes in the average after tax rate on wage income across all taxpayers (one minus the average marginal tax rate, or 1 - AMTR). These estimates are derived from calculations of income-weighted marginal tax rates under the baseline and reform using Tax-Calculator with baseline data from TaxData. An example of the implementation is available here.

\r\n\r\n

Evidence for this parameter can be found in Barro and Redlick's \"Macroeconomic Effects from Government Purchases and Taxes.\" In particular, Barro and Redlick find that a 1 percentage point increase in the AMTR leads to a 0.54 percent increase in GDP. Evaluated at the sample mean, this translates to an elasticity of GDP with respect to the average after tax rate of 0.36.

\r\n\r\n

Karel Mertens' \"Marginal Tax Rates and Income: New Time Series Evidence\" contains additional evidence, focused on tax cuts affecting the upper part of the income distribution.

\r\n\r\n

Both Mertens and Karel tentatively conclude that the effect stems from marginal rather than average tax rates.

\r\n\r\n\r\n

\r\nCore Maintainer (Macro elasticity modeling)*:\r\n

\r\n

\r\n\r\n*This member reviews open source contributions relevant to the macro elasticity modeling portions of the Tax-Calculator repository. ", "slug": "dynamic_elasticity_get_started_blurb", "header": ""}, "pk": 43, "model": "flatblocks.flatblock"}, {"fields": {"content": "

This approach answers the question, \"how does tax policy affect macroeconomic aggregates and prices?\"", "slug": "dynamic_olg_blurb", "header": ""}, "pk": 44, "model": "flatblocks.flatblock"}] \ No newline at end of file diff --git a/templates/btax/header.html b/templates/btax/header.html index b9f26f84..084abe28 100644 --- a/templates/btax/header.html +++ b/templates/btax/header.html @@ -22,7 +22,7 @@

TaxBrain

About Cost of Capital Calculator

What is the Cost of Capital Calculator?

-

The Cost of Capital Calculator is an interface to open source economic models for tax policy analysis. The code for the Cost of Capital Calculator webapp interface is itself open source.

+

The Cost of Capital Calculator is an interface to open source economic models for tax policy analysis. The code for the Cost of Capital Calculator webapp interface is itself open source.

  • Step 1. Create a policy reform by modifying tax law parameters such as rates and depreciation schedules, adjust the economic assumptions, and request the static result.
    • @@ -55,7 +55,7 @@

    Static modeling (Step 1)

    have been compared to results for the same assets generated ). by the Congressional Budget Office (using CBO assumptions). -

    Bugs aside, the results from the Cost of Capital Calculator might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, marginal effective total tax rates produced by the Cost of Capital Calculator assume the "old view" of dividend taxation. Others might assume the "new view" is more applicable. These assumptions are all flexible in the Cost of Capital Calculator, so please conduct sensitivity analyses. Other assumptions can be made flexible in the Cost of Capital Calculator based on user requests.

    +

    Bugs aside, the results from the Cost of Capital Calculator might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, marginal effective total tax rates produced by the Cost of Capital Calculator assume the "old view" of dividend taxation. Others might assume the "new view" is more applicable. These assumptions are all flexible in the Cost of Capital Calculator, so please conduct sensitivity analyses. Other assumptions can be made flexible in the Cost of Capital Calculator based on user requests.

    Core Maintainers (static modeling): @@ -72,7 +72,7 @@

    PolicyBrain Code Build

B-Tax Code Build

-

Version {{ btax_version }} - GitHub

+

Version {{ btax_version }} - GitHub

diff --git a/templates/btax/input_form.html b/templates/btax/input_form.html index 1e1aa135..57144ec5 100644 --- a/templates/btax/input_form.html +++ b/templates/btax/input_form.html @@ -35,7 +35,7 @@

TaxBrain

About Cost of Capital Calculator

What is the Cost of Capital Calculator?

-

The Cost of Capital Calculator is an interface to open source economic models for tax policy analysis. The code for the Cost of Capital Calculator webapp interface is itself open source.

+

The Cost of Capital Calculator is an interface to open source economic models for tax policy analysis. The code for the Cost of Capital Calculator webapp interface is itself open source.

  • Step 1. Create a policy reform by modifying tax law parameters such as rates and depreciation schedules, adjust the economic assumptions, and request the static result.
    • @@ -68,7 +68,7 @@

    Static modeling (Step 1)

    have been compared to results for the same assets generated ). by the Congressional Budget Office (using CBO assumptions). -

    Bugs aside, the results from the Cost of Capital Calculator might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, marginal effective total tax rates produced by the Cost of Capital Calculator assume the "old view" of dividend taxation. Others might assume the "new view" is more applicable. These assumptions are all flexible in the Cost of Capital Calculator, so please conduct sensitivity analyses. Other assumptions can be made flexible in the Cost of Capital Calculator based on user requests.

    +

    Bugs aside, the results from the Cost of Capital Calculator might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, marginal effective total tax rates produced by the Cost of Capital Calculator assume the "old view" of dividend taxation. Others might assume the "new view" is more applicable. These assumptions are all flexible in the Cost of Capital Calculator, so please conduct sensitivity analyses. Other assumptions can be made flexible in the Cost of Capital Calculator based on user requests.

    Core Maintainers (static modeling): @@ -85,7 +85,7 @@

    PolicyBrain Code Build

B-Tax Code Build

-

Version {{ btax_version }} - GitHub

+

Version {{ btax_version }} - GitHub

@@ -132,7 +132,7 @@

B-Tax Code Build

What is the Cost of Capital Calculator?

-

The Cost of Capital Calculator is an interface to B-Tax, an open source economic model for tax policy analysis. The code for the Cost of Capital Calculator webapp interface is itself open source.

+

The Cost of Capital Calculator is an interface to B-Tax, an open source economic model for tax policy analysis. The code for the Cost of Capital Calculator webapp interface is itself open source.

    @@ -157,7 +157,7 @@

    What is the Cost of Capital Calculator?

    Effective Tax Rate Calculations

    -

    The Cost of Capital Calculator produces estimates of the marginal effective tax rates on new investment under the baseline tax policy and user-specified tax reforms. These effective rate calculations take two forms. The marginal effective tax rate (METR) provides the tax wedge on new investment at the level of the business entity. The marginal effective total tax rate (METTR) includes individual level taxes in the measure of the tax wedge on new investment. One can think of the former as indicating the effect of taxes on incentives to invest from the perspective of the firm and the latter as representing effect of taxes on incentives to invest from the perspective of the saver. For more detail on the calculations and assumptions underlying this model, please see the CCC Guide.

    +

    The Cost of Capital Calculator produces estimates of the marginal effective tax rates on new investment under the baseline tax policy and user-specified tax reforms. These effective rate calculations take two forms. The marginal effective tax rate (METR) provides the tax wedge on new investment at the level of the business entity. The marginal effective total tax rate (METTR) includes individual level taxes in the measure of the tax wedge on new investment. One can think of the former as indicating the effect of taxes on incentives to invest from the perspective of the firm and the latter as representing effect of taxes on incentives to invest from the perspective of the saver. For more detail on the calculations and assumptions underlying this model, please see the CCC Guide.

    Accuracy notes

    @@ -166,7 +166,7 @@

    Effective Tax Rate Calculations

    have been compared to results for the same assets generated by the Congressional Budget Office (using CBO assumptions). -

    Results from the Cost of Capital Calculator might differ in comparison to those produced by Congress or the Administration. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the marginal effective total tax rates produced by the Cost of Capital Calculator assume the "old view" of dividend taxation. Others might assume the "new view" is more applicable. These assumptions are all flexible in the underlying model, B-Tax, so please conduct sensitivity analyses. Assumptions can be made flexible in this online interface, the Cost of Capital Calculator, based on user requests.

    +

    Results from the Cost of Capital Calculator might differ in comparison to those produced by Congress or the Administration. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the marginal effective total tax rates produced by the Cost of Capital Calculator assume the "old view" of dividend taxation. Others might assume the "new view" is more applicable. These assumptions are all flexible in the underlying model, B-Tax, so please conduct sensitivity analyses. Assumptions can be made flexible in this online interface, the Cost of Capital Calculator, based on user requests.

    Core Maintainers (static modeling): diff --git a/templates/btax/not_avail.html b/templates/btax/not_avail.html index 4e209734..43ecb514 100644 --- a/templates/btax/not_avail.html +++ b/templates/btax/not_avail.html @@ -13,7 +13,7 @@

    Go to the input page and re-submit your parameters using the current version of PolicyBrain. Note that for older runs some parameters may have been deprecated. We recommend - B-Tax's documentation for alternative parameter choices. + B-Tax's documentation for alternative parameter choices.

    diff --git a/templates/btax/results.html b/templates/btax/results.html index 230c30ee..c823c9c8 100644 --- a/templates/btax/results.html +++ b/templates/btax/results.html @@ -88,7 +88,7 @@

    Tables of Effective Tax Rates or Their Components by Asset or Industry

-

These results were generated by PolicyBrain version {{ webapp_version }} on {{ created_on|date:"D, M jS Y \a\t g:iA" }} UTC using B-Tax version {{ btax_version }}.

+

These results were generated by PolicyBrain version {{ webapp_version }} on {{ created_on|date:"D, M jS Y \a\t g:iA" }} UTC using B-Tax version {{ btax_version }}.

Edit Parameters
diff --git a/templates/dynamic/behavior.html b/templates/dynamic/behavior.html index fc433e8a..550e4222 100644 --- a/templates/dynamic/behavior.html +++ b/templates/dynamic/behavior.html @@ -31,7 +31,7 @@

TaxBrain

About TaxBrain

-

TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

+

TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

  • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
    • @@ -62,8 +62,8 @@

    Static modeling (Step 1)

    TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

    @@ -87,7 +87,7 @@

    Static modeling (Step 1)

    detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

    -

    Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

    +

    Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

    Core Maintainers (static modeling): @@ -108,7 +108,7 @@

    PolicyBrain Code Build

Tax-Calculator Code Build

-

Version {{ taxcalc_version }} - GitHub

+

Version {{ taxcalc_version }} - GitHub

@@ -151,7 +151,7 @@

Partial Equilibrium Simulation

The PE approach is similar to the "conventional" modeling conducted by government agencies for the budgeting process in that both approaches allow for taxpayers to change their behavior in response to policy reforms. The difference is that the PE model allows those behavioral changes to influence Gross National Product (GNP), whereas JCT and the Office of Tax Analysis (OTA) at the Treasury Department hold GNP fixed.

-

The PE model is implemented by applying the behavioral elasticities at the individual taxpayer level. The source code for the implementation is available in the behavior module of the open source Tax-Calculator model . +

The PE model is implemented by applying the behavioral elasticities at the individual taxpayer level. The source code for the implementation is available in the behavior module of the open source Tax-Calculator model .

diff --git a/templates/dynamic/dynamic_input_form.html b/templates/dynamic/dynamic_input_form.html index 512ad100..db84a186 100644 --- a/templates/dynamic/dynamic_input_form.html +++ b/templates/dynamic/dynamic_input_form.html @@ -30,7 +30,7 @@

TaxBrain

About TaxBrain

-

TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

+

TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

  • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
    • @@ -61,8 +61,8 @@

    Static modeling (Step 1)

    TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

    @@ -86,7 +86,7 @@

    Static modeling (Step 1)

    detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

    -

    Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

    +

    Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

    Core Maintainers (static modeling): @@ -107,11 +107,11 @@

    PolicyBrain Code Build

OG-USA Code Build

-

Version {{ ogusa_version }} - GitHub

+

Version {{ ogusa_version }} - GitHub

Tax-Calculator Code Build

-

Version {{ taxcalc_version }} - GitHub

+

Version {{ taxcalc_version }} - GitHub

@@ -153,9 +153,9 @@

Tax-Calculator Code Build

Get Started

Caution: this model is highly preliminary!

-

OG-USA is an open source economic dynamic general equilibrium model intended to evaluate U.S. tax policy. The model code and detailed documentation is available at http://www.github.com/open-source-economics/OG-USA.

+

OG-USA is an open source economic dynamic general equilibrium model intended to evaluate U.S. tax policy. The model code and detailed documentation is available at http://www.github.com/PSLmodels/OG-USA.

-

OG-USA is an overlapping-generations model comprised of households, perfectly competitive firms, and a government with a balanced budget requirement. Firms make a static profit maximization decision in which they rent capital and hire labor to maximize profits given a Cobb-Douglas production function. The government levies taxes on individuals and makes lump sum transfers to individuals according to a balanced budget constraint. In the version deployed through TaxBrain, the model is scaled-down to have a single, representative household for each generation and simple tax functions. A detailed description of the model is available here.

+

OG-USA is an overlapping-generations model comprised of households, perfectly competitive firms, and a government with a balanced budget requirement. Firms make a static profit maximization decision in which they rent capital and hire labor to maximize profits given a Cobb-Douglas production function. The government levies taxes on individuals and makes lump sum transfers to individuals according to a balanced budget constraint. In the version deployed through TaxBrain, the model is scaled-down to have a single, representative household for each generation and simple tax functions. A detailed description of the model is available here.

It is important to note a few caveats for OG-USA and the results available on TaxBrain:

@@ -164,10 +164,10 @@

Get Started

  • Solving the model requires that it attain a steady state. One implication of this requirement is that the government’s budget constraint must be satisfied in the long run. Therefore, the model must specify how tax cuts are financed. The assumptions about how the budget is closed have substantial impact on the predictions of the model (see Table 2 of this JCT document). In OG-USA, we specify a very simple government that contemporaneously redistributes all revenues in a lump-sum manner. Tax cuts are financed by reducing these transfers. Users should recognize that this assumption tends to provide an upper bound on the macroeconomic benefits of tax cuts, as other possible financing methods for tax cuts tend to yield smaller benefits. We are in the process of allowing users to alter the financing assumption.
  • Because there is a representative household for each cohort, OG-USA cannot currently evaluate the distributional effects of tax policy within a cohort (although one could do intergenerational distributional analysis in this framework). We are in the process of adding heterogeneous households in each cohort.
  • The production side of the model is very simplified. It does not allow the user to evaluate business taxation or interactions between personal and business taxation. We are in the process of expanding the production side of the model to allow for the evaluation of business taxation.
    • -
  • The results are for a specific set of parameters values, which are outlined in our detailed documentation. While we have tried to make reasonable parameterizations based on empirical analysis, some users might disagree with these values. The ability to modify parameters through the web application is limited, but users who wish to consider adjustments may download the source code and do so.
    • +
  • The results are for a specific set of parameters values, which are outlined in our detailed documentation. While we have tried to make reasonable parameterizations based on empirical analysis, some users might disagree with these values. The ability to modify parameters through the web application is limited, but users who wish to consider adjustments may download the source code and do so.
    • -

    OG-USA interacts with Tax-Calculator, an open source economic microsimulation model available at www.github.com/open-source-economics/tax-calculator. It does so in the following way. The user enters changes to the individual income tax code he wishes to evaluate via the TaxBrain interface. These tax policy parameters are then used to recompute marginal and effective tax rates for individuals in the microdata underlying Tax-Calculator. These marginal and effective tax rates are then use to estimate marginal and effective tax rates faced by the households in OG-USA, thereby determining how model households respond to changes in tax policy.

    +

    OG-USA interacts with Tax-Calculator, an open source economic microsimulation model available at www.github.com/PSLmodels/tax-calculator. It does so in the following way. The user enters changes to the individual income tax code he wishes to evaluate via the TaxBrain interface. These tax policy parameters are then used to recompute marginal and effective tax rates for individuals in the microdata underlying Tax-Calculator. These marginal and effective tax rates are then use to estimate marginal and effective tax rates faced by the households in OG-USA, thereby determining how model households respond to changes in tax policy.

    How to cite

    diff --git a/templates/dynamic/elasticity.html b/templates/dynamic/elasticity.html index 9134df93..7aebcdfb 100644 --- a/templates/dynamic/elasticity.html +++ b/templates/dynamic/elasticity.html @@ -30,7 +30,7 @@

    TaxBrain

    About TaxBrain

    -

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    +

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
      • @@ -61,8 +61,8 @@

      Static modeling (Step 1)

      TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

      @@ -86,7 +86,7 @@

      Static modeling (Step 1)

      detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

      -

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      +

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      Core Maintainers (static modeling): @@ -107,7 +107,7 @@

      PolicyBrain Code Build

    Tax-Calculator Code Build

    -

    Version {{ taxcalc_version }} - GitHub

    +

    Version {{ taxcalc_version }} - GitHub

    @@ -144,7 +144,7 @@

    Tax-Calculator Code Build

    Macroeconomic Elasticity Simulation

    This approach harnesses econometric estimates of the historic relationship between tax policy and the macroeconomy to predict the effect of tax reforms on growth.

    -

    In particular, this model relies on estimates of how GDP responds to changes in the average after tax rate on wage income across all taxpayers (one minus the average marginal tax rate, or 1 - AMTR). These estimates are derived from calculations of income-weighted marginal tax rates under the baseline and reform using Tax-Calculator with baseline data from TaxData. An example of the implementation is available here.

    +

    In particular, this model relies on estimates of how GDP responds to changes in the average after tax rate on wage income across all taxpayers (one minus the average marginal tax rate, or 1 - AMTR). These estimates are derived from calculations of income-weighted marginal tax rates under the baseline and reform using Tax-Calculator with baseline data from TaxData. An example of the implementation is available here.

    Evidence for this parameter can be found in Barro and Redlick's "Macroeconomic Effects from Government Purchases and Taxes." In particular, Barro and Redlick find that a 1 percentage point increase in the AMTR leads to a 0.54 percent increase in GDP. Evaluated at the sample mean, this translates to an elasticity of GDP with respect to the average after tax rate of 0.36.

    diff --git a/templates/dynamic/elasticity_results.html b/templates/dynamic/elasticity_results.html index 8b219218..4d2d78a3 100644 --- a/templates/dynamic/elasticity_results.html +++ b/templates/dynamic/elasticity_results.html @@ -29,7 +29,7 @@

    TaxBrain

    About TaxBrain

    -

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    +

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
      • @@ -60,8 +60,8 @@

      Static modeling (Step 1)

      TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

      @@ -86,7 +86,7 @@

      Static modeling (Step 1)

      detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

      -

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      +

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      Core Maintainers (static modeling): @@ -107,14 +107,14 @@

      PolicyBrain Code Build

    Tax-Calculator Code Build

    -

    Version {{ taxcalc_version }} - GitHub

    +

    Version {{ taxcalc_version }} - GitHub

    Elasticity Results

    -

    These results were generated by PolicyBrain version {{ webapp_version }} on {{ created_on|date:"D, M jS Y \a\t g:iA" }} UTC using Tax-Calculator version {{ taxcalc_version }}.

    +

    These results were generated by PolicyBrain version {{ webapp_version }} on {{ created_on|date:"D, M jS Y \a\t g:iA" }} UTC using Tax-Calculator version {{ taxcalc_version }}.

    The microsimulation upon which this dynamic simulation was based can be found here

    Edit Parameters
    diff --git a/templates/dynamic/landing.html b/templates/dynamic/landing.html index 64872050..3412494f 100644 --- a/templates/dynamic/landing.html +++ b/templates/dynamic/landing.html @@ -31,7 +31,7 @@

    TaxBrain

    About TaxBrain

    -

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    +

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
      • @@ -62,8 +62,8 @@

      Static modeling (Step 1)

      TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

      @@ -87,7 +87,7 @@

      Static modeling (Step 1)

      detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

      -

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      +

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      Core Maintainers (static modeling): @@ -108,7 +108,7 @@

      PolicyBrain Code Build

    Tax-Calculator Code Build

    -

    Version {{ taxcalc_version }} - GitHub

    +

    Version {{ taxcalc_version }} - GitHub

    diff --git a/templates/dynamic/results.html b/templates/dynamic/results.html index 5749dbbe..ce3822b2 100644 --- a/templates/dynamic/results.html +++ b/templates/dynamic/results.html @@ -29,7 +29,7 @@

    TaxBrain

    About TaxBrain

    -

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    +

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
      • @@ -60,8 +60,8 @@

      Static modeling (Step 1)

      TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

      @@ -85,7 +85,7 @@

      Static modeling (Step 1)

      detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

      -

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      +

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      Core Maintainers (static modeling): @@ -106,7 +106,7 @@

      PolicyBrain Code Build

    Tax-Calculator Code Build

    -

    Version {{ taxcalc_version }} - GitHub

    +

    Version {{ taxcalc_version }} - GitHub

    @@ -116,7 +116,7 @@

    Tax-Calculator Code Build

    {{ tables.result_years.0 }} - {{ tables.result_years | last }}

    -

    These results were generated by PolicyBrain version {{ webapp_version }} on {{ created_on|date:"D, M jS Y \a\t g:iA" }} UTC using Version {{ ogusa_version }}

    +

    These results were generated by PolicyBrain version {{ webapp_version }} on {{ created_on|date:"D, M jS Y \a\t g:iA" }} UTC using Version {{ ogusa_version }}

    The microsimulation upon which this dynamic simulation was based can be found here

    diff --git a/templates/pages/apps.html b/templates/pages/apps.html index fc181a0f..66530fda 100644 --- a/templates/pages/apps.html +++ b/templates/pages/apps.html @@ -24,7 +24,7 @@

    About TaxBrain

    -

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    +

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
      • @@ -55,8 +55,8 @@

      Static modeling (Step 1)

      TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

      @@ -67,13 +67,13 @@

      Static modeling (Step 1)

      Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

      @@ -87,7 +87,7 @@

      Static modeling (Step 1)

      detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

      -

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      +

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      Core Maintainers (static modeling): @@ -103,7 +103,7 @@

      Static modeling (Step 1)

      These members have "write access" to one or both of the core static modeling repositories, Tax-Calculator and TaxData, and work as a team to determine which open source contributions are accepted.

      About B-Tax (Cost of Capital)

      What is the Cost of Capital Calculator?

      -

      The Cost of Capital Calculator is an interface to open source economic models for tax policy analysis. The code for the Cost of Capital Calculator webapp interface is itself open source.

      +

      The Cost of Capital Calculator is an interface to open source economic models for tax policy analysis. The code for the Cost of Capital Calculator webapp interface is itself open source.

      • Step 1. Create a policy reform by modifying tax law parameters such as rates and depreciation schedules, adjust the economic assumptions, and request the static result.
        • @@ -136,7 +136,7 @@

        Static modeling (Step 1)

        have been compared to results for the same assets generated ). by the Congressional Budget Office (using CBO assumptions). -

        Bugs aside, the results from the Cost of Capital Calculator might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, marginal effective total tax rates produced by the Cost of Capital Calculator assume the "old view" of dividend taxation. Others might assume the "new view" is more applicable. These assumptions are all flexible in the Cost of Capital Calculator, so please conduct sensitivity analyses. Other assumptions can be made flexible in the Cost of Capital Calculator based on user requests.

        +

        Bugs aside, the results from the Cost of Capital Calculator might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, marginal effective total tax rates produced by the Cost of Capital Calculator assume the "old view" of dividend taxation. Others might assume the "new view" is more applicable. These assumptions are all flexible in the Cost of Capital Calculator, so please conduct sensitivity analyses. Other assumptions can be made flexible in the Cost of Capital Calculator based on user requests.

        Core Maintainers (static modeling): @@ -149,8 +149,8 @@

        Static modeling (Step 1)

    Code Build

    -

    Tax-Calculator Version {{ taxcalc_version }} - GitHub

    -

    B-Tax (Cost of Capital) Version {{ btax_version }} - GitHub

    +

    Tax-Calculator Version {{ taxcalc_version }} - GitHub

    +

    B-Tax (Cost of Capital) Version {{ btax_version }} - GitHub

    More Information

    diff --git a/templates/pages/docs.html b/templates/pages/docs.html index 0f6e07d6..5ddbd818 100644 --- a/templates/pages/docs.html +++ b/templates/pages/docs.html @@ -22,7 +22,7 @@

    Documentation

    TaxBrain

    Overview

    -

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    +

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
      • @@ -40,8 +40,8 @@

      Static Modeling

      TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

        -
      • Tax-Calculator computes federal individual income taxes and Federal Insurance Contribution Act(FICA) taxes for a sample of tax filing units in years beginning with 2013 .
        • -
      • TaxData creates a microdataset that closely reproduces the multivariate distribution of income, deduction and credit items in 2009, extrapolated through 2026 levels in accordance with Congressional Budget Office forecasts available in spring 2016. It is intended to match similar but confidential data used by the Congressional Joint Committee on Taxation. The underlying dataset must be purchased from the Statistics of Income division of the Internal Revenue Service. Additional information on non-filers is taken from the March 2013 Current Population Survey.
        • +
      • Tax-Calculator computes federal individual income taxes and Federal Insurance Contribution Act(FICA) taxes for a sample of tax filing units in years beginning with 2013 .
        • +
      • TaxData creates a microdataset that closely reproduces the multivariate distribution of income, deduction and credit items in 2009, extrapolated through 2026 levels in accordance with Congressional Budget Office forecasts available in spring 2016. It is intended to match similar but confidential data used by the Congressional Joint Committee on Taxation. The underlying dataset must be purchased from the Statistics of Income division of the Internal Revenue Service. Additional information on non-filers is taken from the March 2013 Current Population Survey.
      • DropQ implements a disclosure avoidance algorithm initially proposed by the U.S. Census Bureau to protect confidential data from differencing attacks. The code is undergoing security review before it is open sourced.
      • TaxBrain itself is an open source project. The underlying models are deployed to TaxBrain using conda, a free and open source package management system supported by Continuum Analytics
      @@ -53,13 +53,13 @@

      Static Modeling

      Note that these reports currently rely on the latest versions of tax-calculator and TaxData, which might not correspond perfectly to TaxBrain.

      @@ -73,7 +73,7 @@

      Static Modeling

      detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

      -

      Bugs aside, the static modelingresults from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      +

      Bugs aside, the static modelingresults from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      Core Maintainers (static modeling): diff --git a/templates/pages/home_content.html b/templates/pages/home_content.html index e060847d..1d286ce2 100644 --- a/templates/pages/home_content.html +++ b/templates/pages/home_content.html @@ -17,7 +17,7 @@

      Transparent

      All of the projects we incubate are freely available and we encourage peer review.

      - The code repository + The code repository
    @@ -95,7 +95,7 @@

    Become a contributor

    GitHub Project

    All of our code is available on Github.com.

    - Visit Our Code Repositories + Visit Our Code Repositories
    diff --git a/templates/taxbrain/header.html b/templates/taxbrain/header.html index de6eb51d..c6352b9c 100644 --- a/templates/taxbrain/header.html +++ b/templates/taxbrain/header.html @@ -21,7 +21,7 @@

    TaxBrain

    Our History

    -

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    +

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    Tax-Calculator Code Build

    -

    Version {{ taxcalc_version }} - GitHub

    +

    Version {{ taxcalc_version }} - GitHub

    diff --git a/templates/taxbrain/includes/params/inputs/file.html b/templates/taxbrain/includes/params/inputs/file.html index 627aa427..613a1744 100644 --- a/templates/taxbrain/includes/params/inputs/file.html +++ b/templates/taxbrain/includes/params/inputs/file.html @@ -7,7 +7,7 @@ {% block content %}
    -

    Reform File: See examples here

    +

    Reform File: See examples here

    {% block section_warnings %} {% endblock %}
    diff --git a/templates/taxbrain/input_file.html b/templates/taxbrain/input_file.html index 07441a66..7ccaf3e1 100644 --- a/templates/taxbrain/input_file.html +++ b/templates/taxbrain/input_file.html @@ -34,7 +34,7 @@

    TaxBrain

    About TaxBrain

    -

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    +

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
      • @@ -65,8 +65,8 @@

      Static modeling (Step 1)

      TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

      @@ -90,7 +90,7 @@

      Static modeling (Step 1)

      detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

      -

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      +

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      Core Maintainers (static modeling): @@ -111,7 +111,7 @@

      PolicyBrain Code Build

    Tax-Calculator Code Build

    -

    Version {{ taxcalc_version }} - GitHub

    +

    Version {{ taxcalc_version }} - GitHub

    diff --git a/templates/taxbrain/input_form.html b/templates/taxbrain/input_form.html index d1a46642..52e426bc 100644 --- a/templates/taxbrain/input_form.html +++ b/templates/taxbrain/input_form.html @@ -35,7 +35,7 @@

    TaxBrain

    About TaxBrain

    -

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    +

    TaxBrain is an interface to open source economic models for tax policy analysis. The code for the TaxBrain webapp interface is itself open source.

    • Step 1. Create a policy reform by modifying tax law parameters such as rates and deductions, adjust the economic baseline, and request the static result. You can do so with the graphical user interface below or by uploading a policy reform file from this page.
      • @@ -66,8 +66,8 @@

      Static modeling (Step 1)

      TaxBrain's static modeling capabilities rely on several open source economic models and other packages:

      @@ -91,7 +91,7 @@

      Static modeling (Step 1)

      detailed SAS program developed by Dan Feenberg and Ina Shapiro of NBER. Third, a subset of input variables has been used to compare the results of Tax-Calculator to Internet TAXSIM as well as against the Policy Simulation Group's PENSIM tax module

      -

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      +

      Bugs aside, the results from TaxBrain might differ in comparison to those produced by Congress or the Administration for other reasons. Modeling requires many assumptions, and neither Congress nor the executive branch publicize all of their assumptions. For example, the distribution of wages in TaxData is assumed to stay the same in real terms for all years after the last year we have available data (2013). We know that Congress assumes this distribution changes over time, but it doesn't publish by how much. These assumptions are all flexible in TaxData, so please conduct sensitivity analyses. Other assumptions can be made flexible in TaxBrain based on user requests.

      Core Maintainers (static modeling): @@ -112,7 +112,7 @@

      PolicyBrain Code Build

    Tax-Calculator Code Build

    -

    Version {{ taxcalc_version }} - GitHub

    +

    Version {{ taxcalc_version }} - GitHub

    @@ -196,7 +196,7 @@

    User tips

  • Leave Feedback

    • Datasets

    -

    TaxBrain now offers users two data options: CPS and PUF. Both datasets contain tax unit level data, but they do not have all of the same variables. As a result, you will not be able to change some policy parameters, depending on which dataset you choose. A more detailed breakdown of the differences between the file can be found here. The CPS-based file is still young relative to the PUF-based file, and we would appreciate your feedback as it matures.

    +

    TaxBrain now offers users two data options: CPS and PUF. Both datasets contain tax unit level data, but they do not have all of the same variables. As a result, you will not be able to change some policy parameters, depending on which dataset you choose. A more detailed breakdown of the differences between the file can be found here. The CPS-based file is still young relative to the PUF-based file, and we would appreciate your feedback as it matures.

    Presets: key provisions from newsworthy proposals

    • The policy parameter presets are under review given the change in baseline parameters caused by the passage of the Tax Cuts and Jobs Act (TCJA).
      • diff --git a/templates/taxbrain/not_avail.html b/templates/taxbrain/not_avail.html index 11cd31a5..7d9e3583 100644 --- a/templates/taxbrain/not_avail.html +++ b/templates/taxbrain/not_avail.html @@ -13,7 +13,7 @@

      Go to the input page and re-submit your parameters using the current version of PolicyBrain. Note that for older runs some parameters may have been deprecated. We recommend - Tax-Calculator's documentation for alternative parameter choices. + Tax-Calculator's documentation for alternative parameter choices.

      diff --git a/templates/taxbrain/results.html b/templates/taxbrain/results.html index c1c07fee..f01c6562 100644 --- a/templates/taxbrain/results.html +++ b/templates/taxbrain/results.html @@ -48,7 +48,7 @@

      Static Results

      Partial Equilibrium Results

      {% endif %}
    -

    These results were generated by PolicyBrain version {{ webapp_version }} on {{ created_on|date:"D, M jS Y \a\t g:iA" }} UTC using Tax-Calculator version {{ taxcalc_version }}.

    +

    These results were generated by PolicyBrain version {{ webapp_version }} on {{ created_on|date:"D, M jS Y \a\t g:iA" }} UTC using Tax-Calculator version {{ taxcalc_version }}.

    {% if quick_calc %}

    This calculation used only a small sample of the available data and only calculated revenues for one year instead of ten. For the full results, click here

    From d0ffcb98becb3abceb63e40cd859abcfd7178704 Mon Sep 17 00:00:00 2001 From: hdoupe Date: Mon, 14 Jan 2019 14:54:02 -0500 Subject: [PATCH 3/3] Drop the 's' --- RELEASES.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/RELEASES.md b/RELEASES.md index 19c92cf8..c05d5d6f 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -14,7 +14,7 @@ Release 1.7.7 on 2019-01-14 - [#951](https://github.com/ospc-org/ospc.org/pull/951) - Use pslmodels channel for webapp Dockerfile - Hank Doupe **Bug Fixes** -- [#952](https://github.com/ospc-org/ospc.org/pull/952) - Updates links - Hank Doupe +- [#952](https://github.com/ospc-org/ospc.org/pull/952) - Update links - Hank Doupe Release 1.7.6 on 2018-11-09