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Search Theory; Current Perspectives

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  • Shouyong Shi

Abstract

In this article I briefly review recent developments in search theory. Particular attention is given to the framework of directed search. I first illustrate the inefficiency that arises in the equilibrium of standard (undirected) search models. Then I provide a formulation of directed search and show that the resulting equilibrium eliminates the inefficiency. Examples of directed search with price posting and auction are provided both for the market with a finite number of individuals and for a large market. After describing the application of search models in monetary theory, I conclude with a remark on the future research.

Suggested Citation

  • Shouyong Shi, 2006. "Search Theory; Current Perspectives," Working Papers tecipa-273, University of Toronto, Department of Economics.
    • Handle: RePEc:tor:tecipa:tecipa-273
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    References listed on IDEAS

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    1. Robert Shimer & Lones Smith, 2000. "Assortative Matching and Search," Econometrica, Econometric Society, vol. 68(2), pages 343-370, March.
    2. Edward J. Green & Ruilin Zhou, 2005. "Money As A Mechanism In A Bewley Economy," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 46(2), pages 351-371, May.
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    4. Daron Acemoglu & Robert Shimer, 1999. "Efficient Unemployment Insurance," Journal of Political Economy, University of Chicago Press, vol. 107(5), pages 893-928, October.
    5. Kenneth Burdett & Shouyong Shi & Randall Wright, 2001. "Pricing and Matching with Frictions," Journal of Political Economy, University of Chicago Press, vol. 109(5), pages 1060-1085, October.
    6. Peter Diamond, 1985. "Search Theory," Working papers 389, Massachusetts Institute of Technology (MIT), Department of Economics.
    7. Trejos, Alberto & Wright, Randall, 1995. "Search, Bargaining, Money, and Prices," Journal of Political Economy, University of Chicago Press, vol. 103(1), pages 118-141, February.
    8. Peters, Michael, 1991. "Ex Ante Price Offers in Matching Games Non-steady States," Econometrica, Econometric Society, vol. 59(5), pages 1425-1454, September.
    9. Moen, Espen R, 1997. "Competitive Search Equilibrium," Journal of Political Economy, University of Chicago Press, vol. 105(2), pages 385-411, April.
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    11. Kiyotaki, Nobuhiro & Wright, Randall, 1993. "A Search-Theoretic Approach to Monetary Economics," American Economic Review, American Economic Association, vol. 83(1), pages 63-77, March.
    12. Shi, Shouyong, 2001. "Frictional Assignment. I. Efficiency," Journal of Economic Theory, Elsevier, vol. 98(2), pages 232-260, June.
    13. Arthur J. Hosios, 1990. "On The Efficiency of Matching and Related Models of Search and Unemployment," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 57(2), pages 279-298.
    14. Sattinger, Michael, 1995. "Search and the Efficient Assignment of Workers to Jobs," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 36(2), pages 283-302, May.
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    Cited by:

    1. Vincenzo Quadrini & Ramon Marimon & Thomas Cooley, 2012. "Risky Investments with Limited Commitment," 2012 Meeting Papers 603, Society for Economic Dynamics.
    2. Yuan Yuan, 2014. "Funding Liquidity and Market Liquidity," DETU Working Papers 1406, Department of Economics, Temple University.
    3. Forand, Jean Guillaume, 2013. "Competing through information provision," International Journal of Industrial Organization, Elsevier, vol. 31(5), pages 438-451.
    4. Vera Brenčič, 2012. "Wage posting: evidence from job ads," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 45(4), pages 1529-1559, November.
    5. Richard Dutu & Benoit Julien & Ian King, 2009. "Liquidity Constrained Competing Auctions," Department of Economics - Working Papers Series 1068, The University of Melbourne.
    6. Gaballo, Gaetano & Marimon, Ramon, 2021. "Breaking the spell with credit-easing: Self-confirming credit crises in competitive search economies," Journal of Monetary Economics, Elsevier, vol. 119(C), pages 1-20.
    7. Randall Wright & Philipp Kircher & Benoit Julîen & Veronica Guerrieri, 2017. "Directed Search: A Guided Tour," NBER Working Papers 23884, National Bureau of Economic Research, Inc.
    8. Ramon Marimon & Gaetano Gaballo, 2014. "Breaking the Spell with Credit-Easing: Self-Confirming Credit Crises in Competitive Search Economies," 2014 Meeting Papers 1077, Society for Economic Dynamics.

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    More about this item

    Keywords

    Search; Efficiency; Unemployment;
    All these keywords.

    JEL classification:

    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • E10 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - General

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