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
How to Use MDX for Interactive Posts
This blog supports MDX, allowing you to embed React components, Plotly charts, and interactive elements directly in posts.
Read moreVAT thresholds, revenues, and the role of counterfactuals
The Telegraph misread OBR projections on VAT threshold increases. The projected revenue gain comes from inflation indexing, not economic growth.
Read moreMy 2024 in Code: Personal Projects & AI Tools
A look back at personal coding projects built with AI assistance while leading PolicyEngine.
Read moreSide Projects
GrantKit
AI-powered grant writing and management platform
Developer ToolsCodeStitch
Combine GitHub repos, PRs, and issues into single files for AI context
Open SourcePR Improver
LLM-powered tool suggesting improvements to PRs based on repo guidelines
Data VizOEWS Explorer
Dashboard for exploring BLS occupational & wage data
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.