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Assortative matching through signals

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  • Poeschel, Friedrich

    (Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany])

Abstract

"The matching of likes is a frequently observed phenomenon. However, for such assortative matching to arise in a search model, often implausibly strong conditions are required. This paper shows that, once signals are introduced, a search model can generate even perfect assortative matching under weak conditions: supermodularity of the match production function is a necessary and sufficient condition. It simultaneously drives sorting and functions as a single-crossing property ensuring that agents choose truthful signals. The information thereby transmitted allows agents to avoid all unnecessary costs of random search, which creates in effect an almost frictionless environment. Hence the unique separating equilibrium in the model achieves nearly unconstrained efficiency despite frictions." (Author's abstract, IAB-Doku) ((en))

Suggested Citation

  • Poeschel, Friedrich, 2012. "Assortative matching through signals," IAB Discussion Paper 201215, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
  • Handle: RePEc:iab:iabdpa:201215
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    References listed on IDEAS

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    Blog mentions

    As found by EconAcademics.org, the blog aggregator for Economics research:
    1. Assortative matching through signals
      by Christian Zimmermann in NEP-DGE blog on 2013-01-20 05:06:20

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    Cited by:

    1. Münich, Daniel & Srholec, Martin & Moritz, Michael & Schäffler, Johannes, 2012. "Mothers and Daughters: Heterogeneity of German direct investments in the Czech Republic. Evidence from the IAB-ReLOC survey," IAB Discussion Paper 201217, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
    2. Wolfgang Dauth & Sebastian Findeisen & Jens Suedekum, 2014. "The Rise Of The East And The Far East: German Labor Markets And Trade Integration," Journal of the European Economic Association, European Economic Association, vol. 12(6), pages 1643-1675, December.
    3. Blien, Uwe & Messmann, Susanne & Trappmann, Mark, 2012. "Do reservation wages react to regional unemployment?," IAB Discussion Paper 201222, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
    4. Dauth, Wolfgang & Südekum, Jens, 2012. "Profiles of local growth and industrial change : facts and an explanation," IAB Discussion Paper 201220, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
    5. Scholz, Theresa, 2012. "Employers' selection behavior during short-time work," IAB Discussion Paper 201218, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
    6. Antoni, Manfred & Heineck, Guido, 2012. "Do literacy and numeracy pay off? : on the relationship between basic skills and earnings," IAB Discussion Paper 201221, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
    7. Michael Stops, 2014. "Job matching across occupational labour markets," Oxford Economic Papers, Oxford University Press, vol. 66(4), pages 940-958.
    8. Carlos Canon, 2011. "Matching & Information Provision by One-Sided and Two-Sided Platforms," Working Papers 11-20, NET Institute, revised Oct 2011.

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    More about this item

    Keywords

    Arbeitsuche; Produktionsfunktion; Suchverfahren; Strukturierung; ökonomische Theorie;
    All these keywords.

    JEL classification:

    • J64 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Unemployment: Models, Duration, Incidence, and Job Search
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory

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