Open Collective
Open Collective

Policy Simulation Library

Fiscal Host: PSL Foundation

Promoting and supporting the use of transparent and reproducible models for public policy analysis


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Top financial contributors


$2,900 USD since Jun 2021

Daniel Lawhon

$360 USD since Apr 2022

Hank Doupe

$240 USD since Oct 2021

Alex Tsalyuk

$45 USD since Jul 2023

Pierce Gendron

$30 USD since Aug 2022

Max Ghenis

$21 USD since Dec 2020

Janos Abel

$20 USD since Jan 2023

Policy Simulation Library is all of us

Our contributors 9

Thank you for supporting Policy Simulation Library.



$2,900 USD

I contribute to the Policy Simulation Library b...

Hank Doupe


$240 USD

Alex Tsalyuk

$45 USD

Pierce Gendron

$30 USD

Max Ghenis

$21 USD

Janos Abel

$20 USD


Transparent and open finances.

Contribution #674703
Contribution #534492
Contribution #485558
Today’s balance

$2,220.12 USD

Total raised

$3,420.67 USD

Total disbursed

$1,200.55 USD

Estimated annual budget

$1,758.80 USD


Let’s get the ball rolling!

News from Policy Simulation Library

Updates on our activities and progress.

2021: A Year in Review

As 2021 winds down, I wanted to take a few minutes to reflect on the Policy Simulation Library’s efforts over the past year. With an amazing community of contributors, supporters, and users, PSL has been able to make a real impact in 2021....
Read more
Published on December 31, 2021 by Jason DeBacker


The Policy Simulation Library (PSL) is a collection of models and other software for public-policy decisionmaking. PSL is developed by independent projects that meet standards for transparency and accessibility. The PSL community encourages collaborative contribution and makes the tools it develops accessible to a diverse group of users.

The PSL's online home for users is

If you would like to learn more about PSL plans, see our roadmap.

If you would like to make a technical contribution to PSL, please review the contributor guide.

You can reach PSL developers and users to discuss how to get started by opening an issue or joining the PSL Community chat room.

PSL is governed by a leadership council of project representatives. 

The PSL community is respectful, warm, and open to everyone.

Our team