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Demand Estimation With Heterogeneous Consumers and Unobserved Product Characteristics: A Hedonic Approach

Author

Listed:
  • Bajari, Patrick

    (Duke U)

  • Benkard, C. Lanier

    (Stanford U)

Abstract
We study the identification and estimation of Gorman-Lancaster style hedonic models of demand for differentiated products for the case when one product characteristic is not observed. Our identification and estimation strategy is a two-step approach in the spirit of Rosen (1974). Relative to Rosen's approach, we generalize the first stage estimation to allow for a single dimensional unobserved product characteristic, and also allow the hedonic pricing function to have a general, non-additive structure. In the second stage, if the product space is continuous and the functional form of utility is known then there exists an inversion between the consumer's choices and her preference parameters. This inversion can be used to recover the distribution of random coeffcients nonparametrically. For the more common case when the set of products is finite, we use the revealed preference conditions from the hedonic model to develop a Gibbs sampling estimator for the distribution of random coeffcients. We apply our methods to estimating personal computer demand.

Suggested Citation

  • Bajari, Patrick & Benkard, C. Lanier, 2004. "Demand Estimation With Heterogeneous Consumers and Unobserved Product Characteristics: A Hedonic Approach," Research Papers 1842, Stanford University, Graduate School of Business.
    • Handle: RePEc:ecl:stabus:1842
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    File URL: http://gsbapps.stanford.edu/researchpapers/library/RP1842.pdf
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    References listed on IDEAS

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    Cited by:

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    3. Susan Athey & Guido W. Imbens, 2007. "Discrete Choice Models With Multiple Unobserved Choice Characteristics," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 48(4), pages 1159-1192, November.
    4. Bontemps, Christophe & Simioni, Michel & Surry, Yves R., 2005. "Hedonic Housing Prices and Agricultural Pollution: An Empirical Investigation on Semiparametric Models," 2005 Annual meeting, July 24-27, Providence, RI 19547, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
    5. Christos Genakos, 2004. "DIFFERENTIAL MERGER EFFECTS: The Case of the Personal Computer Industry," STICERD - Economics of Industry Papers 39, Suntory and Toyota International Centres for Economics and Related Disciplines, LSE.
    6. Patrick Bajari & C. Lanier Benkard, 2005. "Demand Estimation with Heterogeneous Consumers and Unobserved Product Characteristics: A Hedonic Approach," Journal of Political Economy, University of Chicago Press, vol. 113(6), pages 1239-1276, December.
    7. Efthymiou, D. & Antoniou, C., 2013. "How do transport infrastructure and policies affect house prices and rents? Evidence from Athens, Greece," Transportation Research Part A: Policy and Practice, Elsevier, vol. 52(C), pages 1-22.
    8. Pradeep Chintagunta & Jean-Pierre Dubé & Khim Yong Goh, 2005. "Beyond the Endogeneity Bias: The Effect of Unmeasured Brand Characteristics on Household-Level Brand Choice Models," Management Science, INFORMS, vol. 51(5), pages 832-849, May.

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