Economic Analysis Models/Tools for Air Pollution Regulations

EPA develops models and tools for estimating the costs and economic impacts of air pollution regulations. Information is provided below concerning the economic analysis models and tools maintained by EPA.


EMPAX-CGE is a regional computable general equilibrium (CGE) economic model designed to estimate regional macroeconomic impacts of environmental regulations on the U.S. economy. Many major regulations directly affect a large number of industries and/or substantially impact markets for key factors of production. In either case, there may be substantial indirect impacts resulting from changes in production, input use, income, and consumption patterns for directly affected markets. EMPAX-CGE offers the ability to trace economic impacts resulting from policies such as large-scale environmental regulations as the impacts are transmitted throughout the economy. This type of model provides critical insight to policymakers evaluating the magnitude and distribution of costs associated with environmental policies. Both static and dynamic versions of EMPAX-CGE have been developed for policy analysis.

Below are links to the source code for the model and a brief discussion of construction of EMPAX-CGE data files. EPA will not be able to provide any support for any use of the model.

You will need Adobe Reader to view some of the files on this page. You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.

EMPAX-CGE Source Code (ZIP)(26 K) 01-2013
Construction of EMPAX-CGE Data Files(1 pp, 11 K) 01-2013
Documentation Report(112 pp, 690 K) 03-2008
Response to Peer Review Comments(47 pp, 154 K) 11-2006

Multimarket Model

Multimarket Model Peer Review Comments
Peer Review of Multimarket Model(313 pp, 6.5 M) 06-2012

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