摘要：This study develops statistical procedures using actual sample observations for estimating a large-scale demand system for foods. The result is a complete matrix of, all direct, crossprice, and expenditure elasticities for 40 food items and 1 nonfood item. The demand system illustrates the, interdependent nature of demand for foods at the disaggregated level and provides practical information for use in commodity forecasting and policy analysis.
关键词：Disaggregated demand system;constrained maximum likelihood estimation;Engel aggregation;homogeneity;symmetry
