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The Theory of Assortative Matching Based on Costly Signals

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Author Info
HEIDRUN C. HOPPE
BENNY MOLDOVANU
ANER SELA
Abstract

We study two-sided markets with a finite number of agents on each side, and with two-sided incomplete information. Agents are matched assortatively on the basis of costly signals. Asymmetries in signalling activity between the two sides of the market can be explained by asymmetries either in size or in heterogeneity. Our main results identify general conditions under which the potential increase in expected output due to assortative matching (relative to random matching) is offset by the costs of signalling. Finally, we examine the limit model with a continuum of agents and point out differences and similarities to the finite version. Technically, the paper is based on the elegant theory about stochastic order relations among differences of order statistics, pioneered by Barlow and Proschan in 1966 in the framework of reliability theory. Copyright © 2009 The Review of Economic Studies Limited.

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File URL: http://www.blackwell-synergy.com/doi/abs/10.1111/j.1467-937X.2008.00517.x
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Article provided by Blackwell Publishing in its journal Review of Economic Studies.

Volume (Year): 76 (2009)
Issue (Month): 1 (01)
Pages: 253-281
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Handle: RePEc:bla:restud:v:76:y:2009:i:1:p:253-281

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  1. Robin S. Lee & Michael Schwarz, 2009. "Interviewing in Two-Sided Matching Markets," NBER Working Papers 14922, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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This page was last updated on 2009-12-19.

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