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Simple Reputation Systems

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Author Info
John Kennes
Aaron Schiff

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Abstract

We develop a model of simple "reputation systems" that monitor and publish information about the behavior of sellers in a search market with asymmetric information. The reputations created influence the equilibrium search patterns of buyers and thus provide for market-based "punishment" of bad behavior. We show that a reputation system that rewards honesty can enhance welfare by allowing good sellers to truthfully signal their type. However, the same system can be prone to strategic manipulation by sellers who always have low-quality products. In that case, we show that an alternative system which assigns reputations based on product quality rather than honesty can be superior. Copyright The editors of the "Scandinavian Journal of Economics" 2007 .

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File URL: http://www.blackwell-synergy.com/doi/abs/10.1111/j.1467-9442.2007.00481.x
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Publisher Info
Article provided by Blackwell Publishing in its journal Scandinavian Journal of Economics.

Volume (Year): 109 (2007)
Issue (Month): 1 (03)
Pages: 71-91
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Handle: RePEc:bla:scandj:v:109:y:2007:i:1:p:71-91

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  1. Kreps, David M. & Wilson, Robert, 1982. "Reputation and imperfect information," Journal of Economic Theory, Elsevier, vol. 27(2), pages 253-279, August. [Downloadable!] (restricted)
    Other versions:
  2. John Kennes, 2004. "Competitive Auctions: Theory and Application," CAM Working Papers 2004-17, University of Copenhagen. Department of Economics. Centre for Applied Microeconometrics. [Downloadable!]
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  3. Gary Bolton & Elena Katok & Axel Ockenfels, 2002. "How Effective are Online Reputation Mechanisms?," Papers on Strategic Interaction 2002-25, Max Planck Institute of Economics, Strategic Interaction Group. [Downloadable!]
  4. Coles, Melvyn G. & Eeckhout, Jan, 2003. "Indeterminacy and directed search," Journal of Economic Theory, Elsevier, vol. 111(2), pages 265-276, August. [Downloadable!] (restricted)
  5. Diamond, Douglas W, 1989. "Reputation Acquisition in Debt Markets," Journal of Political Economy, University of Chicago Press, vol. 97(4), pages 828-62, August. [Downloadable!] (restricted)
  6. McAfee, R Preston, 1993. "Mechanism Design by Competing Sellers," Econometrica, Econometric Society, vol. 61(6), pages 1281-1312, November. [Downloadable!] (restricted)
  7. Akerlof, George A, 1970. "The Market for 'Lemons': Quality Uncertainty and the Market Mechanism," The Quarterly Journal of Economics, MIT Press, vol. 84(3), pages 488-500, August. [Downloadable!] (restricted)
  8. Rothschild, Michael & Stiglitz, Joseph E, 1976. "Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information," The Quarterly Journal of Economics, MIT Press, vol. 90(4), pages 630-49, November.
  9. Benoit Julien & John Kennes & Ian King, 2000. "Bidding for Labor," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 3(4), pages 619-649, October. [Downloadable!] (restricted)
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  10. Robert Shimer, 2005. "The Assignment of Workers to Jobs in an Economy with Coordination Frictions," Journal of Political Economy, University of Chicago Press, vol. 113(5), pages 996-1025, October.
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  11. Williamson, Steve & Wright, Randall, 1994. "Barter and Monetary Exchange under Private Information," American Economic Review, American Economic Association, vol. 84(1), pages 104-23, March. [Downloadable!] (restricted)
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  12. R. Preston McAfee, 2004. "The Real Lesson of Enron's Implosion: Market Makers Are In the Trust Business," The Economists' Voice, Berkeley Electronic Press, vol. 1(2). [Downloadable!]
  13. Gary Biglaiser, 1993. "Middlemen as Experts," RAND Journal of Economics, The RAND Corporation, vol. 24(2), pages 212-223, Summer. [Downloadable!] (restricted)
  14. Eric J. Friedman* & Paul Resnick, 2001. "The Social Cost of Cheap Pseudonyms," Journal of Economics & Management Strategy, Blackwell Publishing, vol. 10(2), pages 173-199, 06. [Downloadable!] (restricted)
  15. Li, Yiting, 1998. "Middlemen and private information," Journal of Monetary Economics, Elsevier, vol. 42(1), pages 131-159, June. [Downloadable!] (restricted)
  16. Ellison, Glenn, 1994. "Cooperation in the Prisoner's Dilemma with Anonymous Random Matching," Review of Economic Studies, Blackwell Publishing, vol. 61(3), pages 567-88, July. [Downloadable!] (restricted)
  17. Spence, A Michael, 1973. "Job Market Signaling," The Quarterly Journal of Economics, MIT Press, vol. 87(3), pages 355-74, August. [Downloadable!] (restricted)
  18. Tirole, Jean, 1996. "A Theory of Collective Reputations (with Applications to the Persistence of Corruption and to Firm Quality)," Review of Economic Studies, Blackwell Publishing, vol. 63(1), pages 1-22, January. [Downloadable!] (restricted)
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