Max Ghenis
Building open-source tools that help people understand how policy affects their lives and their communities.
Current work
PolicyEngine
Open source software to simulate tax and benefit policies in the US and UK. Our tools help policymakers, researchers, and the public understand how reforms affect households and society.
Visit policyengine.orgRecent writing
OpenMessage: How I built a macOS Google Messages client to give Claude my texts
I had already connected Claude Code to WhatsApp, Signal, Slack, and Gmail. SMS was the last holdout — and no existing tool could solve it.
Read moreWhere US immigrants come from, and where ICE focuses enforcement
Bad Bunny's Super Bowl halftime show highlighted the Americas. Here's what the data shows about immigration and enforcement patterns.
Read moreScrollywood: Smooth scroll video recording for the web
A Chrome extension that records smooth-scrolling videos of any webpage, built for capturing scrollytelling stories and long-form content.
Read moreSide projects
Academic research
What can LLMs tell us about the ETI?
With Jason DeBacker. How LLMs perceive behavioral responses to tax policy.
Beer Price Controls at Yankee Stadium
Economic analysis of stadium pricing, externalities, and welfare.
AI Model Policy Impact Forecasts
Examining LLMs for forecasting policy outcomes under different administrations.
Enhancing Survey Microdata with Administrative Records
Novel approach to microsimulation dataset construction. Presented at NTA 2024.