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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
Contact details of provider: Postal: Department of Economics, Brown University, Providence, RI 02912

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  1. Halaburda, Hanna, 2010. "Unravelling in two-sided matching markets and similarity of preferences," Games and Economic Behavior, Elsevier, vol. 69(2), pages 365-393, July.
  2. Alvin E Roth & Richard A Posner & Christine Jolls & Christopher Avery, 2007. "The New Market for Federal Judicial Law Clerks," Levine's Bibliography 843644000000000288, UCLA Department of Economics.
  3. Roth,Alvin E. & Sotomayor,Marilda A. Oliveira, 1992. "Two-Sided Matching," Cambridge Books, Cambridge University Press, number 9780521437882.
  4. 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.
  5. Fuhito Kojima, 2007. "Matching and Price Competition: Comment," American Economic Review, American Economic Association, vol. 97(3), pages 1027-1031, June.
  6. Matthew O. Jackson & Brian W. Rogers, 2007. "Meeting Strangers and Friends of Friends: How Random Are Social Networks?," American Economic Review, American Economic Association, vol. 97(3), pages 890-915, June.
  7. 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.
  8. Szeidl, Adam & Rosenblat, Tanya & Mobius, Markus & Karlan, Dean, 2009. "Trust and Social Collateral," Scholarly Articles 3051620, Harvard University Department of Economics.
  9. Ostrovsky, Michael & Schwarz, Michael, 2007. "Information Disclosure and Unraveling in Matching Markets," Research Papers 1965, Stanford University, Graduate School of Business.
  10. 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.
  11. Alvin E. Roth, 2007. "What Have We Learned From Market Design?," NBER Working Papers 13530, National Bureau of Economic Research, Inc.
  12. M.Utku Unver, 2004. "Unraveling Yields Inefficient Matching: Evidence from Post-Season College Football Bowls," Working Papers 259, University of Pittsburgh, Department of Economics, revised Jan 2004.
  13. repec:oup:restud:v:77:y:2010:i:1:p:218-244 is not listed on IDEAS
  14. Calvo-Armengol, Antoni & Zenou, Yves, 2005. "Job matching, social network and word-of-mouth communication," Journal of Urban Economics, Elsevier, vol. 57(3), pages 500-522, May.
  15. Muriel Niederle, 2006. "Competitive Wages in a Match with Ordered Contracts," NBER Working Papers 12334, National Bureau of Economic Research, Inc.
  16. Yann Bramoullé & Rachel Kranton & Martin D'Amours, 2010. "Strategic Interaction and Networks," Cahiers de recherche 1018, CIRPEE.
  17. 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.
  18. Montgomery, James D, 1991. "Social Networks and Labor-Market Outcomes: Toward an Economic Analysis," American Economic Review, American Economic Association, vol. 81(5), pages 1407-18, December.
  19. Andrea Galeotti & Sanjeev Goyal & Matthew O. Jackson & Fernando Vega-Redondo & Leeat Yariv, 2008. "Network Games," Economics Working Papers ECO2008/07, European University Institute.
  20. Bulow, Jeremy I. & Levin, Jonathan, 2003. "Matching and Price Competition," Research Papers 1818, Stanford University, Graduate School of Business.
  21. Muriel Niederle & Alvin E. Roth, 2004. "Market Culture: How Norms Governing Exploding Offers Affect Market Performance," Levine's Bibliography 122247000000000207, UCLA Department of Economics.
  22. Niederle, Muriel & Roth, Alvin E., 2009. "Market Culture: How Rules Governing Exploding Offers Affect Market Performance," Scholarly Articles 11077571, Harvard University Department of Economics.
  23. Matt Jackson, 2003. "The Effects of Social Networks on Employment and Inequality," Theory workshop papers 658612000000000032, UCLA Department of Economics.
  24. John H. Kagel & Alvin E. Roth, 2000. "The Dynamics of Reorganization in Matching Markets: A Laboratory Experiment Motivated by a Natural Experiment," The Quarterly Journal of Economics, Oxford University Press, vol. 115(1), pages 201-235.
  25. 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.
  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. 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.
  28. Roth, Alvin E & Xing, Xiaolin, 1994. "Jumping the Gun: Imperfections and Institutions Related to the Timing of Market Transactions," American Economic Review, American Economic Association, vol. 84(4), pages 992-1044, September.
  29. Itay P. Fainmesser & David A. Goldberg, 2011. "Bilateral and Community Enforcement in a Networked Market with Simple Strategies," Working Papers 2011-2, Brown University, Department of Economics.
  30. Abdulkadiroglu, Atila & Sonmez, Tayfun, 1999. "House Allocation with Existing Tenants," Journal of Economic Theory, Elsevier, vol. 88(2), pages 233-260, October.
  31. Li, Hao & Rosen, Sherwin, 1998. "Unraveling in Matching Markets," American Economic Review, American Economic Association, vol. 88(3), pages 371-87, June.
  32. Tjalling C. Koopmans & Martin J. Beckmann, 1955. "Assignment Problems and the Location of Economic Activities," Cowles Foundation Discussion Papers 4, Cowles Foundation for Research in Economics, Yale University.
  33. 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.
  34. 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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