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The Theory of Assortative Matching Based on Costly Signals

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Author Info
Hoppe, Heidrun C.
Moldovanu, Benny
Sela, Aner

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Abstract

We study two-sided markets with a finite numbers of agents on each side, and with two-sided incomplete information. Agents are matched assortatively on the basis of costly signals. A main goal is to identify conditions under which the potential increase in expected output due to assortative matching (relative to random matching) is completely offset by the costs of signalling. We also study how the signalling activity and welfare on each side of the market change when we vary the number of agents and the distribution of their attributes, thereby displaying effects that are particular to small markets. Finally, we look at the continuous version of our two-sided market model and establish the connections to the finite version. Technically, the paper is based on the very elegant theory about stochastic ordering of (normalized) spacings and other linear combinations of order statistics from distributions with monotone failure rates, pioneered by R. Barlow and F. Proschan (1966, 1975) in the framework of reliability theory.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 5543.

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Date of creation: Mar 2006
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Handle: RePEc:cpr:ceprdp:5543

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Related research
Keywords: matching signalling

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Find related papers by JEL classification:
C7 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory
D8 - Microeconomics - - Information, Knowledge, and Uncertainty

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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.:
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  2. Axel Anderson & Lones Smith, 2006. "Assortative Matching and Reputation," Cowles Foundation Discussion Papers 1553, Cowles Foundation, Yale University. [Downloadable!]
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  6. Robert Shimer & Lones Smith, 2000. "Assortative Matching and Search," Econometrica, Econometric Society, vol. 68(2), pages 343-370, March.
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  7. Ed Hopkins & Tatiana Kornienko, 2006. "Which Inequality? The Inequality of Resources Versus the Inequality of Rewards," Levine's Bibliography 784828000000000621, UCLA Department of Economics. [Downloadable!]
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  19. Li, Hao & Damiano, Ettore, 2005. "Price Discrimination and Efficient Matching," Micro Theory Working Papers damiano-05-03-21-12-21-58, Microeconomics.ca Website, revised 22 Mar 2005. [Downloadable!]
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  20. Thomas Kittsteiner & Benny Moldovanu, 2004. "Priority Auctions and Queue Disciplines that Depend on Processing Time," Discussion Papers 5, SFB/TR 15 Governance and the Efficiency of Economic Systems, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich. [Downloadable!]
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  25. Cole, Harold L & Mailath, George J & Postlewaite, Andrew, 1992. "Social Norms, Savings Behavior, and Growth," Journal of Political Economy, University of Chicago Press, vol. 100(6), pages 1092-1125, December. [Downloadable!] (restricted)
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Full references

Cited by:
(explanations, 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. Ed Hopkins, 2006. "Job Market Signalling of Relative Position, or Becker Married to Spence," Levine's Bibliography 321307000000000553, UCLA Department of Economics. [Downloadable!]
    Other versions:
  2. Ed Hopkins & Tatiana Kornienko, 2007. "Status, Affluence, and Inequality: Rank-Based Comparisons in Games of Status," Levine's Bibliography 122247000000001442, UCLA Department of Economics. [Downloadable!]
  3. Ed Hopkins & Tatiana Kornienko, 2007. "Cross and Double Cross: Comparative Statics in First Price and All Pay Auctions," Topics in Theoretical Economics, Berkeley Electronic Press, vol. 7(1), pages 1366-1366. [Downloadable!] (restricted)
  4. Belot, Michèle & Francesconi, Marco, 2006. "Can Anyone be 'The One'? Evidence on Mate Selection from Speed Dating," CEPR Discussion Papers 5926, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
    Other versions:
  5. Hoppe, Heidrun C. & Moldovanu, Benny & Ozdenoren, Emre, 2007. "Coarse Matching and Price Discrimination," CEPR Discussion Papers 6041, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
  6. Ed Hopkins & Tatiana Kornienko, 2006. "Methods of Social Comparison in Games of Status," Levine's Bibliography 122247000000001183, UCLA Department of Economics. [Downloadable!]
  7. repec:ese:iserwp: is not listed on IDEAS
  8. Ed Hopkins & Tatiana Kornienko, 2007. "Cross and Double Cross: Comparative Statics in First Price Auctions," Levine's Bibliography 321307000000000831, UCLA Department of Economics. [Downloadable!]
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