Import Demand Estimation and the Generalized Composite Commodity Theorem
A frequently encountered problem in import demand estimation is how to account for competition between imports and domestic production. Traditionally, use of the Armington model has been a way to handle this problem. This is a disaggregate model which distinguishes commodities by country of origin with import demand determined in a separable two-step procedure. The model appears frequently in analysis of international agricultural markets. However, the Armington model relies on a set of weak separability assumptions, which several authors have shown to be highly questionable. In this paper, a new aggregation theorem, the Generalized Composite Commodity Theorem (GCCT), is applied to test whether imports can be treated as a separate group. An advantage with the GCCT is that only import data is required to conduct the test. The application is to the imports of swordfish to the U.S. with implications for U.S. and international swordfish management policies.
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- Cezary A Kapuscinski & Peter G Warr, 1996.
"Estimation of Armington Elasticities: An Application to the Philippines,"
Departmental Working Papers
1996-08, The Australian National University, Arndt-Corden Department of Economics.
- Kapuscinski, Cezary A. & Warr, Peter G., 1999. "Estimation of Armington elasticities: an application to the Philippines," Economic Modelling, Elsevier, vol. 16(2), pages 257-278, April.
- Cezary A. Kapuscinski & Prof Peter G. Warr, 1996. "Estimation of Armington Elasticities: An Application to the Philippines," Trade and Development 96/8, Australian National University, Department of Economics.
- Doane, Michael J & Spulber, Daniel F, 1994. "Open Access and the Evolution of the U.S. Spot Market for Natural Gas," Journal of Law and Economics, University of Chicago Press, vol. 37(2), pages 477-517, October.
- George C. Davis & Ni Lin & C. Richard Shumway, 2000. "Aggregation without Separability: Tests of the United States and Mexican Agricultural Production Data," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 82(1), pages 214-230.
- Pashardes, Panos, 1993. "Bias in Estimating the Almost Ideal Demand System with the Stone Index Approximation," Economic Journal, Royal Economic Society, vol. 103(419), pages 908-15, July.
- Deaton, Angus S & Muellbauer, John, 1980. "An Almost Ideal Demand System," American Economic Review, American Economic Association, vol. 70(3), pages 312-26, June.
- Lewbel, Arthur, 1996. "Aggregation without Separability: A Generalized Composite Commodity Theorem," American Economic Review, American Economic Association, vol. 86(3), pages 524-43, June.
- Adolf Buse & Wing H Chan, 2000. "Invariance, price indices and estimation in almost ideal demand systems," Empirical Economics, Springer, vol. 25(3), pages 519-539.
- Moschini, GianCarlo, 1995. "Units of Measurement and the 'Stone Index' In Demand System Estimation," Staff General Research Papers 5058, Iowa State University, Department of Economics.
- Frank Asche & Helge Bremnes & Cathy R. Wessells, 1999.
"Product Aggregation, Market Integration, and Relationships between Prices: An Application to World Salmon Markets,"
American Journal of Agricultural Economics,
Agricultural and Applied Economics Association, vol. 81(3), pages 568-581.
- Asche, F. & Bremnes, H. & Wessells, C.R., 1998. "Product Aggregation, Market Integration and Relationships Between Prices: an Application to World Salmon Markets," Papers 27/98, Norwegian School of Economics and Business Administration-.
- Kjell G. Salvanes, 1997. "Market Delineation and Demand Structure," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 79(1), pages 139-150.
- Karagiannis, G. & Mergos, G. J., 2002. "Estimating theoretically consistent demand systems using cointegration techniques with application to Greek food data," Economics Letters, Elsevier, vol. 74(2), pages 137-143, January.
- Albert J. Reed & J. William Levedahl & Charles Hallahan, 2005. "The Generalized Composite Commodity Theorem and Food Demand Estimation," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 87(1), pages 28-37.
- Chalfant, James A, 1987. "A Globally Flexible, Almost Ideal Demand System," Journal of Business & Economic Statistics, American Statistical Association, vol. 5(2), pages 233-42, April.
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