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Endogenous Product Choice: A Progress Report

Gregory Crawford

No 8862, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: Empirical models of differentiated product demand are widely used by both academics and practitioners. While these methods treat carefully the potential endogeneity of price, until recently they have assumed the number and characteristics of the products offered by firms are exogenous. This paper presents a progress report on an ongoing research agenda to address this issue. First, it summarizes how the appropriate choice of 'orthogonal' instruments can yield consistent estimates of own and cross-price elasticities in the presence of endogenous product characteristics. Second, it summarizes how to measure 'quality markups' and the welfare consequences of endogenous product quality in U.S. cable television markets. Related papers and extensions to consider multiple product characteristics and dynamics are also discussed.

Keywords: Cable television; Endogenous product characteristics; Endogenous product choice; Endogenous quality; Orthogonal instruments; Welfare (search for similar items in EconPapers)
JEL-codes: C31 C52 L15 L40 L82 (search for similar items in EconPapers)
Date: 2012-02
New Economics Papers: this item is included in nep-com
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Citations: View citations in EconPapers (26)

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