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Social Networks and Unraveling in Labor Markets

This paper studies the phenomenon of early hiring in entry-level labor markets (e.g. the market for gastroenterology fellowships and the market for judicial clerks) in the presence of social networks. We o¤er a two-stage model in which workers in training institutions reveal information on their own ability over time. In the early stage, workers receive a noisy signal about their own ability. The early information is ?soft?and non-veri?able, and workers can convey the information credibly only to ? rms that are connected to them (potentially via their mentors). At the second stage, ? hard? veri?able (and accurate) information is revealed to the workers and can be credibly transmitted to all ?rms. We characterize the e¤ects of changes to the network structure on the unraveling of the market towards early hiring. Moreover, we show that an e¢ cient design of the matching procedure can prevent unraveling.

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Paper provided by Brown University, Department of Economics in its series Working Papers with number 2010-15.

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Date of creation: 2010
Date of revision:
Handle: RePEc:bro:econwp:2010-15
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Department of Economics, Brown University, Providence, RI 02912

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  1. Bulow, Jeremy I. & Levin, Jonathan, 2003. "Matching and Price Competition," Research Papers 1818, Stanford University, Graduate School of Business.
  2. Guillaume Frechette & Alvin E. Roth & M. Utku Ünver, 2004. "Unraveling Yields Inefficient Matchings: Evidence from Post- Season College Football Bowls," Microeconomics 0404001, EconWPA, revised 24 Sep 2004.
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  11. Muriel Niederle & Alvin E. Roth, 2009. "Market Culture: How Rules Governing Exploding Offers Affect Market Performance," American Economic Journal: Microeconomics, American Economic Association, vol. 1(2), pages 199-219, August.
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  13. Muriel Niederle & Alvin E. Roth, 2005. "The Gastroenterology Fellowship Market: Should There Be a Match?," American Economic Review, American Economic Association, vol. 95(2), pages 372-375, May.
  14. Christopher Avery & Christine Jolls & Richard Posner & Alvin E. Roth, 2007. "The New Market for Federal Judicial Law Clerks," NBER Working Papers 13213, National Bureau of Economic Research, Inc.
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  17. Alvin E. Roth, 2009. "What Have We Learned from Market Design?," Innovation Policy and the Economy, University of Chicago Press, vol. 9(1), pages 79 - 112.
  18. Muriel Niederle & Alvin E. Roth, 2004. "Market Culture: How Norms Governing Exploding Offers Affect Market Performance," NBER Working Papers 10256, National Bureau of Economic Research, Inc.
  19. Markus Mobius & Adam Szeidl, 2007. "Trust and Social Collateral," NBER Working Papers 13126, National Bureau of Economic Research, Inc.
  20. Yann Bramoull? & Rachel Kranton & Martin D'Amours, 2014. "Strategic Interaction and Networks," American Economic Review, American Economic Association, vol. 104(3), pages 898-930, March.
  21. Coralio Ballester & Antoni Calvó-Armengol & Yves Zenou, 2004. "Who's Who in Networks. Wanted: The Key Player," Working Papers 178, Barcelona Graduate School of Economics.
  22. Damiano, Ettore & Li, Hao & Suen, Wing, 2004. "Unraveling of Dynamic Sorting," working papers damiano-04-08-11-03-02-02, Vancouver School of Economics, revised 11 Aug 2004.
  23. Atila Abdulkadiroglu & Tayfun Sonmez, 1998. "Random Serial Dictatorship and the Core from Random Endowments in House Allocation Problems," Econometrica, Econometric Society, vol. 66(3), pages 689-702, May.
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  25. Muriel Niederle, 2007. "Competitive Wages in a Match with Ordered Contracts," American Economic Review, American Economic Association, vol. 97(5), pages 1957-1969, December.
  26. Muriel Niederle & Alvin E Roth, 2003. "Unraveling Reduces Mobility in a Labor Market: Gastroenterology with and without a Centralized Match," Levine's Working Paper Archive 506439000000000428, David K. Levine.
  27. Fuhito Kojima, 2007. "Matching and Price Competition: Comment," American Economic Review, American Economic Association, vol. 97(3), pages 1027-1031, June.
  28. Hao Li & Wing Suen, 2000. "Risk Sharing, Sorting, and Early Contracting," Journal of Political Economy, University of Chicago Press, vol. 108(5), pages 1058-1087, October.
  29. Andrea Galeotti & Sanjeev Goyal & Matthew O. Jackson & Fernando Vega-Redondo & Leeat Yariv, 2010. "Network Games," Review of Economic Studies, Oxford University Press, vol. 77(1), pages 218-244.
  30. Roth, Alvin E, 1991. "A Natural Experiment in the Organization of Entry-Level Labor Markets: Regional Markets for New Physicians and Surgeons in the United Kingdom," American Economic Review, American Economic Association, vol. 81(3), pages 415-40, June.
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  32. Posner, Richard A. & Avery, Christopher & Jolls, Christine & Roth, Alvin, 2001. "The Market for Federal Judicial Law Clerks," Scholarly Articles 2623748, Harvard University Department of Economics.
  33. Itay P. Fainmesser, 2012. "Community Structure and Market Outcomes: A Repeated Games-in-Networks Approach," American Economic Journal: Microeconomics, American Economic Association, vol. 4(1), pages 32-69, February.
  34. Alvin E. Roth, 2002. "The Economist as Engineer: Game Theory, Experimentation, and Computation as Tools for Design Economics," Econometrica, Econometric Society, vol. 70(4), pages 1341-1378, July.
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