[Reply by Mar 22] Aggregating PSL project updates, Feb 23 to Mar 22

  • Reporting period: Feb 23, 2020 to Mar 22, 2021
  • Reply by: Mar 22, 2021 (Mon)
  • Aggregated draft to be posted here by: Mar 23, 2021 (Tue)


This is a thread to aggregate project updates for the March NumFOCUS and PSL newsletters. Please reply with developments pertinent to the projects you have worked on during the reporting period. Please include URLs where applicable.

Items to consider:

  1. New releases or features
  2. General updates
    • Recent achievements you’re most proud of
    • What are you working on? What’s coming up? Where do you need help?
    • Upcoming events
    • Job openings

Feel free to contact me with questions. Thanks!

Tax-Cruncher was used by Alex Brill, Kyle Pomerleau, and Grant Seiter to analyze the effects of the American Rescue Plan on hypothetical households. Link

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Cost-of-Capital-Calculator version 1.2.6 was released.

Tax-Calculator was used by Jason DeBacker, Richard Evans, Max Ghenis, and Cody Kallen in an OpenRG Quantitative Note analyzing the distributional impacts of the American Rescue Plan. Link.

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Below are the aggregated updates for NumFOCUS newsletter. The aggregated updates for PSL newsletter are in this pull request .

Note: The NumFOCUS newsletter went out before the usual time this month and hence only contains last month’s updates plus the mention of the newly cataloged TaxData library.

Please reply with corrections or edits by noon on Monday, 3/29/2021.


The Policy Simulation Library (PSL) is a collection of open-source models and software for public-policy decisionmaking.

General announcements: