The Structure of US Food Demand

Jeffrey LaFrance ()

No 2008-10, Working Papers from School of Economic Sciences, Washington State University

Abstract: An exactly aggregable system of Gorman Engel curves for U.S. food consumption is developed and implemented. Box-Cox transformations on prices and income nest functional form. The model nests rank up to rank three. The model is estimated by nonlinear three-stage least squares with annual time series data on 21 foods, 17 nutrients, age and race demographics, and the distribution of income for 1919-1941 and 1947-2000. Results are consistent with full rank three. Point estimates for the Box-Cox parameters on income and prices are 0.86 and 1.09, respectively, strongly rejecting zero and one in both cases. No statistical evidence of serial correlation, specification errors, or parameter instability is found.

Keywords: Aggregation; food demand; functional form; parameter stability; rank; specification errors (search for similar items in EconPapers)
JEL-codes: D12 E21 (search for similar items in EconPapers)
Pages: 33 pages
Date: 2008-08
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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Related works:
Journal Article: The structure of US food demand (2008)
Working Paper: The Structure of U.S. Food Demand (1998)
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