Revised Armington Elasticities of Substitution USITC Model and the Concordance for Constructing Consistent Set for the GTAP Model

USITC Office of Economics Research Note No. 20001-A

46 Pages Posted: 15 Mar 2007

See all articles by William A. Donnelly

William A. Donnelly

USITC

Kyle Johnson

U.S. International Trade Commission

Marinos E. Tsigas

U.S. International Trade Commission

David L Ingersoll

U.S. International Trade Commission

Date Written: 2004

Abstract

The paper presents a set of Armington substitution elasticities, and the concordances between different models and their aggregates, which are required to generate a consistent set of elasticities between the Commission's United States CGE model, USITC model, and the Global Trade Analysis Project CGE model, "GTAP model". These CGE models differ in the scope and level of commodity detail. Because of these differences generating a consistent set of Armington elasticities for an necessitates defining USITC model aggregate commodities that map to the more aggregate GTAP model commodities. The example provided here illustrates a 128-commodity U.S. single-country model mapping to a 41-commodity global model. The two characterizations of the U.S. economy are based upon the sectors as defined in the Bureau of Economic Analysis (BEA) 1992 Input-Output (I-O) accounts. Tables provide the concordances between the USITC-128 commodities and the GTAP-41 commodities and the BEA I-O accounts. In addition, the Armington elasticity is presented for each of the BEA I-O accounts.

Keywords: U.S. Armington elasticities of substitution, GTAP

JEL Classification: D58, F12

Suggested Citation

Donnelly, William A. and Johnson, Kyle and Tsigas, Marinos E. and Ingersoll, David L, Revised Armington Elasticities of Substitution USITC Model and the Concordance for Constructing Consistent Set for the GTAP Model (2004). USITC Office of Economics Research Note No. 20001-A, Available at SSRN: https://ssrn.com/abstract=970539 or http://dx.doi.org/10.2139/ssrn.970539

William A. Donnelly (Contact Author)

USITC ( email )

500 E Street, SW
Washington, DC 20436
United States
202-205-3225 (Phone)
202-205-2340 (Fax)

Kyle Johnson

U.S. International Trade Commission ( email )

500 E Street, SW
Washington, DC 20436
United States

Marinos E. Tsigas

U.S. International Trade Commission ( email )

500 E Street SW
Washington, DC 20436
United States

David L Ingersoll

U.S. International Trade Commission ( email )

500 E Street, SW
Washington, DC 20436
United States

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