Introduction

The PolicyEngine Python package serves as a unified framework for conducting comprehensive policy simulations and analyses across different countries. Building on the foundation of OpenFisca-Core, PolicyEngine provides a consistent API that supports diverse functionalities such as microsimulations, individual household analyses, and cross-country comparisons.

PolicyEngine Core enables users to:

• Simulate and analyze various tax-benefit policies with tailored models for each country.

• Use two main simulation classes—Microsimulation for broad-scale microdata simulations and IndividualSim for detailed single household calculations.

• Generate interactive and visually appealing charts using Plotly, facilitating budgetary breakdowns, income decile analyses, poverty breakdowns by demographic groups, and impacts on income inequality.

• Reproduce visualizations from the PolicyEngine web interface programmatically, allowing for in-depth analysis and customization.

The package aims to streamline policy evaluation by offering a user-friendly API, comprehensive documentation, and tools for generating insightful visual representations of simulation results.