<< Back to Working Papers List

Working Paper 006: ImpactECON Global Supply Chain Model

By Terrie Walmsley and Peter Minor
Publishing Date: August 2016

Abstract

The ImpactECON Global Supply Chain (IESC) model is based on the GTAP model (Hertel and Tsigas, 1997) and solved in GEMPACK (Harrison and Pearson, 1996). The GTAP model is a relatively standard global computable general equilibrium (CGE) model. The main difference between the IESC model and the GTAP model is the treatment of imports. The IESC model tracks the importing agent and exporting country of each imported commodity, along with differential tariff rates by agent and source. By capturing imports and tariffs by commodity, agent, source and destination, the IESC model provides further flexibility in examining the impact of various policies on welfare, production, trade and employment.

The aim of this paper is to document the changes made to the GTAP model to incorporate global supply chains. The paper provides an outline of the model, as well as the new auxiliary programs available for the decomposition of welfare.

Download Working Paper

ImpactECON Working Paper 006: ImpactECON Global Supply Chain Model

Discussion/Comments

The owners of ImpactECON reserve the right to publish discussion items or comments and to otherwise moderate the content. Email addresses will be used solely to verify the identity of the comment author and will not be used for marketing or sold.