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.
|Date of creation:||2005|
|Date of revision:|
|Contact details of provider:|| Postal: |
Phone: (414) 918-3190
Fax: (414) 276-3349
Web page: http://www.aaea.org
More information through EDIRC
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- 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.
- 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.
- 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.
- 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.
- Kapuscinski, Cezary A. & Warr, Peter G., 1999.
"Estimation of Armington elasticities: an application to the Philippines,"
Elsevier, vol. 16(2), pages 257-278, April.
- 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.
- 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.
- Asche, F. & Bremnes, H. & Wessells, C.R., 1998.
"Product Aggregation, Market Integration and Relationships Between Prices: an Application to World Salmon Markets,"
27/98, Norwegian School of Economics and Business Administration-.
- 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.
- 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.
- Deaton, Angus S & Muellbauer, John, 1980. "An Almost Ideal Demand System," American Economic Review, American Economic Association, vol. 70(3), pages 312-26, June.
- 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.
- Lewbel, Arthur, 1996. "Aggregation without Separability: A Generalized Composite Commodity Theorem," American Economic Review, American Economic Association, vol. 86(3), pages 524-43, June.
- 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.
- 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.
When requesting a correction, please mention this item's handle: RePEc:ags:aaea05:19432. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (AgEcon Search)
If references are entirely missing, you can add them using this form.