Inattentive Consumers and Product Quality
This paper studies a model in which some consumers shop on the basis of price alone, without attention to potential differences in product quality. A firm may offer a low-quality product to exploit these inattentive consumers. In the unique symmetric equilibrium of the model, firms choose prices with mixed strategies, similarly to Varian (1980) in which some consumers purchase from a random seller without attention to market prices. In our model, though, firms also choose quality stochastically, and there is both price and quality dispersion. Two stylized policy interventions are considered: competition policy, which acts to increase the number of sellers, and market transparency reforms which act to increase the fraction of attentive consumers. With fewer inattentive consumers, firms are less likely to "cheat" (i.e., cut quality) which therefore improves welfare, but profit and consumer surplus can either increase or decrease. When there is a large number of sellers, approximately half the sellers cheat (regardless of the fraction of inattentive consumers), and introducing more sellers boosts consumers surplus and reduces profit, while the impact on welfare is ambiguous.
|Date of creation:||Sep 2007|
|Date of revision:|
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- Stefano DellaVigna, 2009.
"Psychology and Economics: Evidence from the Field,"
Journal of Economic Literature,
American Economic Association, vol. 47(2), pages 315-72, June.
- Andrei Shleifer, 2004.
"Does Competition Destroy Ethical Behavior?,"
NBER Working Papers
10269, National Bureau of Economic Research, Inc.
- Stiglitz, Joseph E., 1989. "Imperfect information in the product market," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 13, pages 769-847 Elsevier.
- Varian, Hal R, 1980. "A Model of Sales," American Economic Review, American Economic Association, vol. 70(4), pages 651-59, September.
- Xavier Gabaix & David Laibson, 2005.
"Shrouded Attributes, Consumer Myopia, and Information Suppression in Competitive Markets,"
NBER Working Papers
11755, National Bureau of Economic Research, Inc.
- Xavier Gabaix & David Laibson, 2006. "Shrouded Attributes, Consumer Myopia, and Information Suppression in Competitive Markets," The Quarterly Journal of Economics, Oxford University Press, vol. 121(2), pages 505-540.
- Laibson, David I. & Gabaix, Xavier, 2006. "Shrouded Attributes, Consumer Myopia, and Information Suppression in Competitive Markets," Scholarly Articles 4554333, Harvard University Department of Economics.
- David Dranove & Mark A. Satterthwaite, 1992. "Monopolistic Competition When Price and Quality are Imperfectly Observable," RAND Journal of Economics, The RAND Corporation, vol. 23(4), pages 518-534, Winter.
- Yuk-Shee Chan & Hayne Leland, 1982. "Prices and Qualities in Markets with Costly Information," Review of Economic Studies, Oxford University Press, vol. 49(4), pages 499-516.
- Leland, Hayne E, 1979. "Quacks, Lemons, and Licensing: A Theory of Minimum Quality Standards," Journal of Political Economy, University of Chicago Press, vol. 87(6), pages 1328-46, December.
- Steven Salop & Joseph Stiglitz, 1977. "Bargains and ripoffs: a model of monopolistically competitive price dispersion," Special Studies Papers 94, Board of Governors of the Federal Reserve System (U.S.).
- Glenn Ellison, 2003.
"A Model of Add-on Pricing,"
NBER Working Papers
9721, National Bureau of Economic Research, Inc.
- Rosenthal, Robert W, 1980. "A Model in Which an Increase in the Number of Sellers Leads to a Higher Price," Econometrica, Econometric Society, vol. 48(6), pages 1575-79, September.
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