Price Dispersion in the Small and in the Large: Evidence from an Internet Price Comparison Site
This paper examines 4 million daily price observations for over 1000 consumer electronics products on the price comparison site Shopper.com. We find little support for the notion that prices on the Internet are converging to the “law of one price.” In addition, observed levels of price dispersion vary systematically with the number of firms listing prices. The difference between the two lowest prices (the “gap”) averages 22 percent when two firms list prices, and falls to 3.5 percent in markets where 17 firms list prices. These empirical results are an implication of a general “clearinghouse” model of equilibrium price dispersion.
|Date of creation:||2004|
|Publication status:||Published in Journal of Industrial Economics, 2004|
|Contact details of provider:|| Postal: 1309 East Tenth Street, Room 451, Bloomington, IN 47405-1701|
Web page: http://kelley.iu.edu/bepp/
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- 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 1575-1579, September.
- John W. Pratt & David A. Wise & Richard Zeckhauser, 1979. "Price Differences in almost Competitive Markets," The Quarterly Journal of Economics, Oxford University Press, vol. 93(2), pages 189-211.
- Yannis Bakos, 2001. "The Emerging Landscape for Retail E-Commerce," Journal of Economic Perspectives, American Economic Association, vol. 15(1), pages 69-80, Winter.
- Michael Smith & Erik Brynjolfsson, 1999.
"Frictionless Commerce? A Comparison of Internet and Conventional Retailers,"
Computing in Economics and Finance 1999
1022, Society for Computational Economics.
- Erik Brynjolfsson & Michael D. Smith, 2000. "Frictionless Commerce? A Comparison of Internet and Conventional Retailers," Management Science, INFORMS, vol. 46(4), pages 563-585, April.
- Burdett, Kenneth & Judd, Kenneth L, 1983. "Equilibrium Price Dispersion," Econometrica, Econometric Society, vol. 51(4), pages 955-969, July.
- Michael R. Baye & John Morgan, 2001. "Information Gatekeepers on the Internet and the Competitiveness of Homogeneous Product Markets," American Economic Review, American Economic Association, vol. 91(3), pages 454-474, June.
- Jennifer F. Reinganum, 1978.
"A Simple Model of Equilibrium Price Dispersion,"
335, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Spulber, Daniel F, 1995. "Bertrand Competition When Rivals' Costs Are Unknown," Journal of Industrial Economics, Wiley Blackwell, vol. 43(1), pages 1-11, March.
- Narasimhan, Chakravarthi, 1988. "Competitive Promotional Strategies," The Journal of Business, University of Chicago Press, vol. 61(4), pages 427-49, October.
- Alan T. Sorensen, 2000. "Equilibrium Price Dispersion in Retail Markets for Prescription Drugs," Journal of Political Economy, University of Chicago Press, vol. 108(4), pages 833-862, August.
- Michael D. Smith & Erik Brynjolfsson, 2001.
"Consumer Decision-making at an Internet Shopbot: Brand Still Matters,"
in: E-commerce, pages 541-558
National Bureau of Economic Research, Inc.
- Smith, Michael D & Brynjolfsson, Erik, 2001. "Consumer Decision-Making at an Internet Shopbot: Brand Still Matters," Journal of Industrial Economics, Wiley Blackwell, vol. 49(4), pages 541-558, December.
- Jeffrey R. Brown & Austan Goolsbee, 2002.
"Does the Internet Make Markets More Competitive? Evidence from the Life Insurance Industry,"
Journal of Political Economy,
University of Chicago Press, vol. 110(3), pages 481-507, June.
- Brown, Jeffrey, 2000. "Does the Internet Make Markets More Competitive? Evidence from the Life Insurance Industry," Working Paper Series rwp00-007, Harvard University, John F. Kennedy School of Government.
- Shilony, Yuval, 1977. "Mixed pricing in oligopoly," Journal of Economic Theory, Elsevier, vol. 14(2), pages 373-388, April.
- Stahl, Dale O, II, 1989. "Oligopolistic Pricing with Sequential Consumer Search," American Economic Review, American Economic Association, vol. 79(4), pages 700-712, September.
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