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Rep Tlaib's press release cites David's PolicyEngine-powered analysis: tlaib.house.gov/posts/tlaib-...

Great to see Rep Tlaib's team use PolicyEngine to design her new policy reform.

I had a blast making this with Claude Code - both the animation and the spooky soundtrack, which it composed in Python.

github.com/policyengine...

Our AI journey continues - excited to share our Claude Code plugin soon!

Thanks for this data point. Is there an extract on Californians you can point to? I didn't see state there.

Additional people have some chance of being in the phase-in range on 2026-12-31 (including some currently outside California) who may plan accordingly over the coming 14 months.

California's wealth tax proposal isn't marginal: At $2B wealth, you'll pay 5% on the full $2B ($100M).

To avoid a cliff, they phase in the 5% over $1B to $1.1B wealth. You pay $0 at $1B and 5% at $1.1B. That's $55M, or a 55% tax on tha $100M marginal wealth.

Something about being in California brings out the ballot measure analyst in me!

I have some free time Thursday and Friday afternoons - shoot me a message if you'd like to connect in LA. And you can RSVP to the event here:
forms.zohopublic.com/imaginela1/f...

Heading to LA this week for Benefit Navigator's event.

Their platform helps families and case managers navigate public benefits and tax credits - powered by the @us.policyengine.org API for tax and benefit calculations. Excited to see tech and policy come together to expand access.

Tomorrow evening I'll be celebrating the 13th anniversary of the @opengovhub.bsky.social, @us.policyengine.org's new home in DC. I'll also give a short talk on our work to promote open governance and transparency, the mission of the space and our neighbor organizations. Tickets still available!

ChatGPT estimates the anti-Israel boycott against Shouk increased their risk of closure by 40% this year.

Links:
instagram.com/p/DHWA8BWJHl6
washingtonsocialist.mdcdsa.org/ws-articles/...
instagram.com/p/DPUllyAjkxb
chatgpt.com/share/68e223...

Disappointed that the plant-based Shouk, my favorite fast-casual place in DC, has closed. Anti-Israel groups targeted it because an Israeli immigrant owned it, and are now cheering their victory.

Agentic AI coding tools continue to inspire us to turn everything into software.

Join us at our new home in downtown DC, the @opengovhub.bsky.social, for a celebratory happy hour on Oct 22: luma.com/lnrzph2h

Alaska's Fairbanks region has the highest second-lowest-cost silver plan (a key PTC ingredient) for older residents.

As a result, a married couple, each 64 years old earning $83k, would gain $57,292 in 2026 if the enhanced subsidies are extended. They'd get some PTC with up to $756k income.

Our new ACA calculator shows how extending the enhanced premium tax credits would affect households.

An extreme case: A 64-year-old in Fairbanks, AK would gain $655 in 2026 if they earn $61k, but gain $26,861 if they earn $62k.

Try it here: policyengine.org/us/aca-calc

Come by tonight if you're in London!

The Prenatal-to-3 Policy Impact Center just launched their new Policy Impact Calculator, which uses @us.policyengine.org for federal and state tax modeling. Great example of research infrastructure enabling better policy decisions for young children and families.
pn3policy.org/policy-impac...

Enjoyed my conversation with the SVIC Podcast about how
@policyengine.org uses Claude Code to democratize economic policy analysis. Watch here: youtu.be/4apWdJR9-iY?...

Can't wait for our first live event in London! If you're in the area and interested in policy simulation, I think you'll discover major new possibilities our new app and research will offer.

See you there: eventbrite.co.uk/e/policyengi...

We constructed fully synthetic firm microdata to conduct this analysis. I was struck how calibrating to a large range of coarse aggregates could result in microdata that reveals sharp responses to cliff effects.

You could run a bunching study on this synthetic data! (And we will.)

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