Tools & Code

Open-source tools and public repositories from our applied economics research. Reusable projects carry setup documentation; the food-security mobility repository remains listed with its reconciliation status.

Start here

Start Here: AI for Applied Researchers

A five-step sequence for putting an AI coding agent into an applied economics study. Each case names the public materials currently available.

Start the guide →

The work below tends to start the same way: when the same implementation task recurs in a second research project, we package the shared code for reuse. Some of these tools support the analyses we publish here; others provide public-facing infrastructure for collaborators.

Every tool listed here links to its GitHub repository. The main analysis repository contains public code and documentation for selected studies, and coverage varies by study.

Looking for the smaller artifacts? Prompt and checklist templates extracted from our methodology articles are available at → Browse templates.

forking-paths

Provenance audit for AI-assisted empirical research. Reads Claude Code session logs and displays the decision graph, so we can audit the analysis path and give referees a record of what was tried and what was kept.

For: Researchers running AI-assisted analyses git clone https://github.com/dphdame/forking-paths
Code on GitHub →

tooearlytosay-analysis

Public code and documentation for selected Too Early To Say studies. Article and Findings labels describe the materials currently available for each result.

For: Replicators, peer reviewers, and curious readers git clone https://github.com/dphdame/tooearlytosay-analysis
Code on GitHub →

caphe-website

Full-stack platform for the California Association of Public Health Economists. 37 interactive methods labs, a Medi-Cal Access Explorer, and a Public Health ROI Calculator. Node and Express on Heroku, Supabase with row-level security on the back end.

For: Public health analysts and teaching faculty git clone https://github.com/dphdame/caphe-website
Code on GitHub →

bigquery-census-demand-segmentation

Geographic demand segmentation for subscription pricing using Census ACS via BigQuery. A walk-through of CTEs, window functions, QUALIFY, and ROLLUP, written to run inside the BigQuery free tier so anyone can fork and follow along.

For: Analysts learning BigQuery patterns on public data git clone https://github.com/dphdame/bigquery-census-demand-segmentation
Code on GitHub →

vrt-testing

Centralized visual regression testing across the websites we maintain, built on Playwright. Captures baseline screenshots, flags layout drift on each deploy, and lets us share one testing pipeline across several properties.

For: Developers maintaining multiple static sites git clone https://github.com/dphdame/vrt-testing
Code on GitHub →

foodsecurity_mobility

Repository associated with the food-security mobility research thread. Its current contents and relationship to the published routing claims are under reconciliation.

For: Food security and transit-equity researchers git clone https://github.com/dphdame/foodsecurity_mobility
Inspect the repository →

A note on reuse

Most of these started as one-off scripts inside a project before becoming reusable enough to publish. If something is helpful, please fork it, file an issue, or open a PR. We record unresolved setup and usage questions, then add instructions when a concrete use case identifies what is missing.

Email [email protected] to suggest a reusable project artifact for publication.

Get Research Updates

New analysis delivered to your inbox. Policy-relevant findings with methodology. No spam, unsubscribe anytime.

Subscribe for Free