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Tutorial session: Analysing tax-benefit reform impacts with PolicyEngine

What do you want to teach? This hands-on tutorial introduces participants to PolicyEngine, a free, open-source microsimulation platform for analysing tax and benefit policy reforms in the US and UK. Participants will learn to use PolicyEngines web interface (policyengine.org) to: (1) model a tax or benefit reform by adjusting policy parameters, (2) compute hypothetical household impacts showing how the reform affects a hypothetical households taxes, benefits, and net income, (3) run population-level microsimulation analysis to estimate budgetary cost or revenue, distributional effects across income deciles, poverty impacts, and winner/loser breakdowns, and (4) use PolicyEngines AI assistant (a Claude Code plugin) to conduct policy analysis from natural language prompts, including generating charts, policy briefs, and congressional district or constituency-level breakdowns. The session will use live examples relevant to current policy debates in both the US and UK.

Decision modelling in Python: an introduction to the MISCore discrete-event microsimulation package

All microsimulation models require the same core functionalities such as event scheduling, output logging, model calibration, and common random number techniques. Few frameworks provide a comprehensive package of ready-to-use core functionalities, and modelers often need to implement these functionalities themselves, resulting in duplicate work and non-standardized and unvalidated code.

Policy modelling in EUROMOD with Generative AI

This course demonstrates how to model policies in EUROMOD—the EU tax-benefit microsimulation model—using Generative AI (GenAI). By bridging traditional policy modeling with cutting-edge technology, the session shows how to simulate and validate tax and social policy rules in a practical, hands-on environment. Rather than teaching EUROMOD itself, the course uses it as a primary case study for how GenAI can accelerate the broader policy research cycle.

Introduction to EUROLAB

With the B2 Fiscal Policy Analysis Unit in Sevilla, we developed a User Interface to our labour supply model that is integrated with EUROMOD. The model is going to be publicly available in end of Q1 2026. I could give a tutorial on: