Online Demand Under Limited Consumer Search
Using aggregate product search data from Amazon.com, we jointly estimate consumer information search and online demand for consumer durable goods. To estimate the demand and search primitives, we introduce an optimal sequential search process into a model of choice and treat the observed market-level product search data as aggregations of individual-level optimal search sequences. The model builds on the dynamic programming framework by Weitzman [Weitzman, M. L. 1979. Optimal search for the best alternative. Econometrica 47(3) 641-654] and combines it with a choice model. It can accommodate highly complex demand patterns at the market level. At the individual level, the model has a number of attractive properties in estimation, including closed-form expressions for the probability distribution of alternative sets of searched goods and breaking the curse of dimensionality. Using numerical experiments, we verify the model's ability to identify the heterogeneous consumer tastes and search costs from product search data. Empirically, the model is applied to the online market for camcorders and is used to answer manufacturer questions about market structure and competition and to address policy-maker issues about the effect of selectively lowered search costs on consumer surplus outcomes. We demonstrate that the demand estimates from our search model predict the actual product sales ranks. We find that consumer search for camcorders at Amazon.com is typically limited to 10-15 choice options and that this affects estimates of own and cross elasticities. In a policy simulation, we also find that the vast majority of the households benefit from Amazon.com's product recommendations via lower search costs.
Volume (Year): 29 (2010)
Issue (Month): 6 (11-12)
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- Gautam Gowrisankaran & Marc Rysman, 2007.
"Dynamics of Consumer Demand for New Durable Goods,"
Boston University - Department of Economics - Working Papers Series
WP2007-024, Boston University - Department of Economics.
- Gautam Gowrisankaran & Marc Rysman, 2009. "Dynamics of Consumer Demand for New Durable Goods," NBER Working Papers 14737, National Bureau of Economic Research, Inc.
- Marc Rysman & Gautam Gowrisankaran, 2011. "Dynamics of Consumer Demand for New Durable Goods," Boston University - Department of Economics - Working Papers Series WP2011-062, Boston University - Department of Economics.
- Weitzman, Martin L, 1979.
"Optimal Search for the Best Alternative,"
Econometric Society, vol. 47(3), pages 641-654, May.
- Reinganum, Jennifer F., "undated".
"Nash Equilibrium Search for the Best Alternative,"
413, California Institute of Technology, Division of the Humanities and Social Sciences.
- Dan Horsky & Paul Nelson, 2006. "Testing the Statistical Significance of Linear Programming Estimators," Management Science, INFORMS, vol. 52(1), pages 128-135, January.
- Amil Petrin, 2002. "Quantifying the Benefits of New Products: The Case of the Minivan," Journal of Political Economy, University of Chicago Press, vol. 110(4), pages 705-729, August.
- Diamond, Peter A., 1971. "A model of price adjustment," Journal of Economic Theory, Elsevier, vol. 3(2), pages 156-168, June.
- Reinganum, Jennifer F, 1982.
"Strategic Search Theory,"
International Economic Review,
Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 23(1), pages 1-17, February.
- Moorthy, Sridhar & Ratchford, Brian T & Talukdar, Debabrata, 1997. " Consumer Information Search Revisited: Theory and Empirical Analysis," Journal of Consumer Research, Oxford University Press, vol. 23(4), pages 263-277, March.
- Patrick Bajari & Jeremy Fox & Stephen Ryan, 2008.
"Evaluating wireless carrier consolidation using semiparametric demand estimation,"
Quantitative Marketing and Economics (QME),
Springer, vol. 6(4), pages 299-338, December.
- Patrick Bajari & Jeremy T. Fox & Stephen Ryan, 2006. "Evaluating Wireless Carrier Consolidation Using Semiparametric Demand Estimation," NBER Working Papers 12425, National Bureau of Economic Research, Inc.
- Alan L. Montgomery & Shibo Li & Kannan Srinivasan & John C. Liechty, 2004. "Modeling Online Browsing and Path Analysis Using Clickstream Data," Marketing Science, INFORMS, vol. 23(4), pages 579-595, November.
- Nitin Mehta & Surendra Rajiv & Kannan Srinivasan, 2003. "Price Uncertainty and Consumer Search: A Structural Model of Consideration Set Formation," Marketing Science, INFORMS, vol. 22(1), pages 58-84, June.
- Patrick Bajari & Jeremy T. Fox & Stephen P. Ryan, 2007. "Linear Regression Estimation of Discrete Choice Models with Nonparametric Distributions of Random Coefficients," American Economic Review, American Economic Association, vol. 97(2), pages 459-463, May.
- HernÃ¡n A. Bruno & Naufel J. Vilcassim, 2008. "—Structural Demand Estimation with Varying Product Availability," Marketing Science, INFORMS, vol. 27(6), pages 1126-1131, 11-12.
- Hauser, John R & Wernerfelt, Birger, 1990. " An Evaluation Cost Model of Consideration Sets," Journal of Consumer Research, Oxford University Press, vol. 16(4), pages 393-408, March.
- Erik Meijer & Jan Rouwendal, 2006.
"Measuring welfare effects in models with random coefficients,"
Journal of Applied Econometrics,
John Wiley & Sons, Ltd., vol. 21(2), pages 227-244.
- Meijer, E. & Rouwendal, J., 2000. "Measuring welfare effects in models with random coefficients," Research Report 00F25, University of Groningen, Research Institute SOM (Systems, Organisations and Management).
- Michelle Sovinsky Goeree, 2008. "Limited Information and Advertising in the U.S. Personal Computer Industry," Econometrica, Econometric Society, vol. 76(5), pages 1017-1074, 09.
- Nelson, Philip, 1974. "Advertising as Information," Journal of Political Economy, University of Chicago Press, vol. 82(4), pages 729-754, July/Aug..
- Ali Hortaçsu & Chad Syverson, 2004. "Product Differentiation, Search Costs, and Competition in the Mutual Fund Industry: A Case Study of S&P 500 Index Funds," The Quarterly Journal of Economics, Oxford University Press, vol. 119(2), pages 403-456.
- Morgan, Peter & Manning, Richard, 1985. "Optimal Search," Econometrica, Econometric Society, vol. 53(4), pages 923-944, July.
- Anderson, S.P. & Renault, R., 1997.
"Pricing, Product Diversity and Search Costs: A Bertrand-Chamberlin-Diamond Model,"
97.481, Toulouse - GREMAQ.
- Simon P. Anderson & Regis Renault, 1999. "Pricing, Product Diversity, and Search Costs: A Bertrand-Chamberlin-Diamond Model," RAND Journal of Economics, The RAND Corporation, vol. 30(4), pages 719-735, Winter.
- Simon P. Anderson & Regis Renault, 1999. "Pricing, product diversity, and search costs: a Bertrand-Chamberlin-Diamond model," Virginia Economics Online Papers 335, University of Virginia, Department of Economics.
- Han Hong & Matthew Shum, 2006. "Using price distributions to estimate search costs," RAND Journal of Economics, RAND Corporation, vol. 37(2), pages 257-275, 06.
- Garrett Sonnier & Andrew Ainslie & Thomas Otter, 2007. "Heterogeneity distributions of willingness-to-pay in choice models," Quantitative Marketing and Economics (QME), Springer, vol. 5(3), pages 313-331, September.
- Nelson, Phillip, 1970. "Information and Consumer Behavior," Journal of Political Economy, University of Chicago Press, vol. 78(2), pages 311-329, March-Apr.
- Bresnahan, Timothy F, 1987. "Competition and Collusion in the American Automobile Industry: The 1955 Price War," Journal of Industrial Economics, Wiley Blackwell, vol. 35(4), pages 457-482, June.
- George J. Stigler, 1961. "The Economics of Information," Journal of Political Economy, University of Chicago Press, vol. 69, pages 213-213.
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