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/
More information through EDIRC
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Reinganum, Jennifer F, 1979.
"A Simple Model of Equilibrium Price Dispersion,"
Journal of Political Economy,
University of Chicago Press, vol. 87(4), pages 851-858, August.
- Jennifer F. Reinganum, 1978. "A Simple Model of Equilibrium Price Dispersion," Discussion Papers 335, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- 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.
- 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.
- 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.
- 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.
- 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.
- Michael D. Smith & Erik Brynjolfsson, 2001. "Consumer Decision-making at an Internet Shopbot: Brand Still Matters," NBER Chapters, 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.
- Shilony, Yuval, 1977. "Mixed pricing in oligopoly," Journal of Economic Theory, Elsevier, vol. 14(2), pages 373-388, April.
- 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.
- Yannis Bakos, 2001. "The Emerging Landscape for Retail E-Commerce," Journal of Economic Perspectives, American Economic Association, vol. 15(1), pages 69-80, Winter.
- Narasimhan, Chakravarthi, 1988. "Competitive Promotional Strategies," The Journal of Business, University of Chicago Press, vol. 61(4), pages 427-449, 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.
- Burdett, Kenneth & Judd, Kenneth L, 1983. "Equilibrium Price Dispersion," Econometrica, Econometric Society, vol. 51(4), pages 955-969, July.
- Spulber, Daniel F, 1995. "Bertrand Competition When Rivals' Costs Are Unknown," Journal of Industrial Economics, Wiley Blackwell, vol. 43(1), pages 1-11, March.
- Stahl, Dale O, II, 1989. "Oligopolistic Pricing with Sequential Consumer Search," American Economic Review, American Economic Association, vol. 79(4), pages 700-712, September. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:iuk:wpaper:2004-03. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Rick Harbaugh)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.