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Price Dispersion in the Online Auction Markets

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Author Info
Sha Luo
Abstract

Along the standard measures of price dispersion, this paper proposes a new method, the residual variance model, to examine the levels of price and price variation within and across 10 kinds of physically identical products on eBay UK. The results find that the price levels and price dispersions on eBay are lower than the ones reported in the prior literature regarding other online markets, but the ’law of one price’ has not prevailed in any sample category. It further suggests an important interaction between the extent of price dispersion and the heterogeneities of consumers and sellers.

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Publisher Info
Paper provided by Economics and Econometrics Research Institute (EERI) in its series EERI Research Paper Series with number EERI_RP_2009_07.

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Length: 48 pages
Date of creation: 07 Jul 2009
Date of revision:
Handle: RePEc:eei:rpaper:eeri_rp_2009_07

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Related research
Keywords: Price Dispersion; Online Auction Markets.;

Find related papers by JEL classification:
D44 - Microeconomics - - Market Structure and Pricing - - - Auctions
D49 - Microeconomics - - Market Structure and Pricing - - - Other

This paper has been announced in the following NEP Reports:

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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.:
  1. Michael R. Baye & John Morgan, 2004. "Price Dispersion in the Lab and on the Internet: Theory and Evidence," Working Papers 2004-02, Indiana University, Kelley School of Business, Department of Business Economics and Public Policy. [Downloadable!]
    Other versions:
  2. Karen Clay & Ramayya Krishnan & Eric Wolff, 2001. "Prices and Price Dispersion on the Web: Evidence from the Online Book Industry," NBER Working Papers 8271, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    Other versions:
  3. 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. [Downloadable!] (restricted)
  4. 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. [Downloadable!] (restricted)
    Other versions:
  5. White, Halbert, 1980. "A Heteroskedasticity-Consistent Covariance Matrix Estimator and a Direct Test for Heteroskedasticity," Econometrica, Econometric Society, vol. 48(4), pages 817-38, May. [Downloadable!] (restricted)
  6. George J. Stigler, 1961. "The Economics of Information," Journal of Political Economy, University of Chicago Press, vol. 69, pages 213. [Downloadable!] (restricted)
  7. Anderson, Steven & Friedman, Daniel & Milam, Garrett & Singh, Nirvikar, 2007. "Seller strategies on eBay: Does size matter?," MPRA Paper 4324, University Library of Munich, Germany. [Downloadable!]
  8. Hidvegi, Zoltan & Wang, Wenli & Whinston, Andrew B., 2006. "Buy-price English auction," Journal of Economic Theory, Elsevier, vol. 129(1), pages 31-56, July. [Downloadable!] (restricted)
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This page was last updated on 2009-12-2.

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