文章基本信息

标题：Introducing Asymmetric Separability in the FAST Multistage Demand System
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作者：Bergtold, Jason S. ; Peterson, Everett B.
期刊名称：Journal of Food Distribution Research
印刷版ISSN：0047-245X
出版年度：2005
期号：SUPPL
出版社：Food Distribution Research Society
摘要：This paper determines the set of parametric restrictions required to maintain flexibility under asymmetric weak separability for the flexible and separable translog (FAST) multistage demand system. Because there is not a unique set of parametric restrictions that ensures separability and the values of the unconditional price and expenditure elasticities depend on the parametric restrictions imposed, the appropriateness of a chosen set of parametric restrictions should be tested empirically. An empirical example that illustrates how the choice of parametric restrictions affects the estimation results and the functional form of the price and expenditure elasticities is provided.