Julia implementation of the standard CGE model from Hosoe, Gasawa, and Hashimoto (Chapter 6).
A Computable General Equilibrium (CGE) model is a quantitative economic model that represents an entire economy as a system of interconnected markets of goods and services, of factors of production (e.g., labor and capital), institutions (households, firms, government), and the rest of the world.
It is computable because it is calibrated with data (typically from a Social Accounting Matrix) and solved numerically as a system of nonlinear equations (or an equivalent nonlinear optimization problem) using a mathematical solver, typically a Newton-type algorithm, until the equilibrium conditions (zero-profit, market-clearing, and income-balance constraints) are satisfied within a chosen tolerance.
In a CGE model, economic agents follow explicit behavioral rules (e.g., firms minimize costs, households maximize utility), and prices adjust so that all markets clear simultaneously. CGE models are suitable for analyzing how a policy or external shock propagates through the economy, not only in the directly affected sector, but also through input–output linkages, income changes, and price effects.
https://equicirco.github.io/StandardCGE.jl
StandardCGE.jl is available as a package from the Julia General Registry:
using Pkg
Pkg.add("StandardCGE")If you use this software, please cite:
@software{StandardCGEjl,
title = {StandardCGE.jl - Julia implementation of the Standard CGE model from Hosoe, Gasawa, and Hashimoto (Chapter 6).},
author = {Boero, Riccardo},
doi = {10.5281/zenodo.18079154},
url = {https://equicirco.github.io/StandardCGE.jl/},
year = {2025}
}MIT License. See LICENSE.
This project was initiated with the generous support of a SIS internal project from NILU. Their support was crucial in starting this research and development effort.
Riccardo Boero (ribo@nilu.no)