Social Impact Bond for developing vaccines of COVID19

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【Introduction of Social Impact Bond for developing vaccines of COVID19】

• This is a dApp of Social Impact Bond for developing vaccines of COVID19
  • This dApp aim to support institution which try to develop vaccines of COVID19 by structure of Social Impact Bond.

 

【User Flow】

• ① Institutions of developing vaccines set (define) a objective for evaluation .

  • Estimated budget amount
  • Requested budget amount
  • Objective of saving cost （=Substract requested budget amount from estimated budget amount ）
  • start date & end date of developing vaccines etc,...

• ② Government stake funds which is equal to "estimated budget amount" above

  • Staked amount are lended to idle.finance

• ③ Investors invest funds for institutions of developing vaccines as investment of principal （Maximum invested amount is until "requested budget amount" above）

• ④ Evaluate outcome of institution towards objective.

  • If outcome of institution is achieved to objective, staked funds from government is disributed to investors. (Investors receieve investment of principal amount and interest amount )

    • Investment of principal amount is amount which is divided that interest amount by number of investors.
    • Interest amount is amount which is redeemed from idle.finance and divided that interest amount by number of investors.

  • If outcome of institution is not achieved to objective, staked funds is refund to government.

 

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【Setup】

Setup wallet by using Metamask

1. Add MetaMask to browser (Chrome or FireFox or Opera or Brave)
   https://metamask.io/

2. Adjust appropriate newwork below

Kovan Test Network

 

Setup backend

1. Deploy contracts to Kovan Test Network

(root directory)

$ npm run migrate:Kovan

 

Setup frontend

1. Add an .env file under the directory of ./client.

2. Add SKIP_PREFLIGHT_CHECK=true to an .env file under the directory of ./client.
   （Recommend to reference from ./client/.env.example）

3. Execute command below in root directory.

$ npm run client

4. Access to browser by using link

http://127.0.0.1:3000/idle-insurance-fund

 

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【References】

• [Social Impact Bond]
  • https://medium.com/bhpn-crosswalk/what-to-make-of-social-impact-bonds-f2274210235c#.sl2ipi49w
  • https://www.thestandard.com.hk/breaking-news/section/3/117016/Pay-for-Success-for-the-Success-of-Social-Innovation-in-Hong-Kong
  • http://healthmovement.eu/service/health-impact-bonds/

• [idle.finance]
  • https://idle.finance/#/
  • https://developers.idle.finance/
  • https://github.com/bugduino/idle-contracts

• [Gnosis / Contract Proxy Kit (CPK)]
  • https://explorer.bounties.network/bounty/3937
  • https://github.com/gnosis/contract-proxy-kit
  • https://github.com/gnosis/safe-demo (Truffle box📦)
  • https://docs.gnosis.io/safe/docs/sdks_cpk/
  • https://docs.gnosis.io/safe/docs/cpktutorial1/