Identification of Demand Models of Multiple Purchases

Itai Sher (itaisher@gmail.com) and Kyoo il Kim (kyookim@msu.edu)

No 2012-2, Working Papers from University of Minnesota, Department of Economics

Abstract: We study the nonparametric identification of distributions of utility functions in a multiple purchase setting with a finite number of consumers. Each utility function takes as arguments subsets or, alternatively, quantities of the multiple goods. We exploit mathematical insights from auction theory to generically identify the distribution of utility functions. We use price variation and aggregate data on the sales of each product, but not on individual level purchases or the total sales of bundles of products.

Keywords: Multiple Discrete Choice; Multiple Purchase; Nonparametric Identification; Distribution of Utility Functions; Individual Heterogeneity; Submodularity; Gross Substitutes (search for similar items in EconPapers)
JEL-codes: C14 D11 (search for similar items in EconPapers)
Pages: 70 pages
Date: 2012-11-09
New Economics Papers: this item is included in nep-ecm, nep-mkt and nep-upt
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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