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Matching and Network Effects

  • Sanjeev Goyal


  • Marcel Fafchamps
  • Marco J. van der Leij

This paper examines the existence and magnitude of network effects in the matching of workteams. We study the formation of co-author relations among economists over a thirty year period. Our principal finding is that a collaboration emerges faster among two authors if they are closer in the social network of economists. This proximity effect on collaboration is strong and robust but only affects initial collaboration. It has no positive influence on subsequent co-authorship. We also provide some evidence that matching depends on experience, junior authors being more likely to collaborate with senior authors.

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Paper provided by University of Essex, Department of Economics in its series Economics Discussion Papers with number 611.

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Date of creation: 11 May 2006
Date of revision:
Handle: RePEc:esx:essedp:611
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Order Information: Postal: Discussion Papers Administrator, Department of Economics, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, U.K.

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  1. Paul Oyer, 2006. "Initial Labor Market Conditions and Long-Term Outcomes for Economists," Journal of Economic Perspectives, American Economic Association, vol. 20(3), pages 143-160, Summer.
  2. Stefan Dercon & Joachim De Weerdt, 2002. "Risk-sharing Networks and Insurance against illness," Economics Series Working Papers WPS/2002-16, University of Oxford, Department of Economics.
  3. Simon Johnson & John McMillan, 2002. "Courts and Relational Contracts," Journal of Law, Economics and Organization, Oxford University Press, vol. 18(1), pages 221-277, April.
  4. Marcel Fafchamps, 2004. "Market Institutions in Sub-Saharan Africa: Theory and Evidence," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262062364, June.
  5. Sanjeev Goyal & Marco J. van der Leij & Jos� Luis Moraga-Gonzalez, 2006. "Economics: An Emerging Small World," Journal of Political Economy, University of Chicago Press, vol. 114(2), pages 403-432, April.
  6. Garance Genicot & Debraj Ray, 2003. "Group Formation in Risk-Sharing Arrangements," Review of Economic Studies, Oxford University Press, vol. 70(1), pages 87-113.
  7. McMillan, John & Woodruff, Christopher, 1998. "Inter-Firm Relationships and Informal Credit in Vietnam," CEPR Discussion Papers 2036, C.E.P.R. Discussion Papers.
  8. Marcel Fafchamps & Susan Lund, 2000. "Risk-Sharing Networks in Rural Philippines," Economics Series Working Papers 10, University of Oxford, Department of Economics.
  9. Marcel Fafchamps & Bart Minten, 2000. "Returns to Social Network Capital among Traders," Development Working Papers 145, Centro Studi Luca d\'Agliano, University of Milano.
  10. Greif, Avner, 1993. "Contract Enforceability and Economic Institutions in Early Trade: the Maghribi Traders' Coalition," American Economic Review, American Economic Association, vol. 83(3), pages 525-48, June.
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