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Coarse Matching and Price Discrimination

  • Hoppe, Heidrun C.
  • Moldovanu, Benny
  • Ozdenoren, Emre

We study two-sided markets with heterogeneous, privately informed agents who gain from being matched with better partners from the other side. Agents are matched through an intermediary. Our main results quantify the relative attractiveness of a coarse matching scheme consisting of two classes of agents on each side, in terms of matching surplus (output), the intermediary's revenue, and the agents' welfare (defined by the total surplus minus payments to the intermediary). In a nutshell, our philosophy is that, if the worst-case scenario under coarse matching is not too bad relative to what is achievable by more complex, finer schemes, a coarse matching scheme will turn out to be preferable once the various transaction costs associated with fine schemes are taken into account. Similarly, coarse matching schemes can be significantly better than completely random matching, requiring only a minimal amount of information.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 6041.

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Date of creation: Jan 2007
Date of revision:
Handle: RePEc:cpr:ceprdp:6041
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  1. Rochet, Jean-Charles & Tirole, Jean, 2003. "Platform Competition in Two-Sided Markets," IDEI Working Papers 152, Institut d'Économie Industrielle (IDEI), Toulouse.
  2. Hoppe, Heidrun C. & Moldovanu, Benny & Sela, Aner, 2005. "The Theory of Assortative Matching Based on Costly Signals," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 85, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  3. Damiano, Ettore & Li, Hao, 2005. "Price Discrimination and Efficient Matching," working papers damiano-05-03-21-12-21-58, Vancouver School of Economics, revised 22 Mar 2005.
  4. Rochet, Jean-Charles & Tirole, Jean, 2005. "Two-Sided Markets : A Progress Report," IDEI Working Papers 275, Institut d'Économie Industrielle (IDEI), Toulouse.
  5. Burdett, Ken & Coles, Melvyn G, 1997. "Marriage and Class," The Quarterly Journal of Economics, MIT Press, vol. 112(1), pages 141-68, February.
  6. Roughgarden, Tim & Tardos, Eva, 2004. "Bounding the inefficiency of equilibria in nonatomic congestion games," Games and Economic Behavior, Elsevier, vol. 47(2), pages 389-403, May.
  7. Chao, Hung-po & Wilson, Robert, 1987. "Priority Service: Pricing, Investment, and Market Organization," American Economic Review, American Economic Association, vol. 77(5), pages 899-916, December.
  8. Wilson, Robert B, 1989. "Efficient and Competitive Rationing," Econometrica, Econometric Society, vol. 57(1), pages 1-40, January.
  9. Neeman, Zvika, 2003. "The effectiveness of English auctions," Games and Economic Behavior, Elsevier, vol. 43(2), pages 214-238, May.
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