Aggregation and Identification in Consumer Demand Systems
14 Pages Posted: 6 Jun 2011
Date Written: 1990
In this paper we explore the following fundamental question: Are there reasonable conditions under which the parameters of estimated aggregate demand systems will uniquely identify underlying individual demand systems? In the process of examining this question we show that the conditions which have been reported in the literature are incomplete. The exercise is carried out in the framework of individual demand systems which are integrable and exactly aggregable.
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