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Matching and Network Effects

Author

Listed:
  • Marcel Fafchamps
  • Sanjeev Goyal
  • Marco J. van der Leij

Abstract

The matching of individuals in teams is a key element in the functioning of an economy. The network of social ties can potentially transmit important information on abilities and reputations and also help mitigate matching frictions by facilitating interactions among "screened" individuals. We conjecture that the probability of two individuals forming a team falls in the distance between the two individuals in the network of existing social ties. The objective of this paper is to empirically test this conjecture. We examine the formation of coauthor relations among economists over a twenty-year period. Our principal finding is that a new collaboration emerges faster among two researchers if they are "closer" in the existing coauthor network among economists. This proximity effect on collaboration is strong: Being at a network distance of 2 instead of 3, for instance, raises the probability of initiating a collaboration by 27%. (JEL: C78, D83, D85) (c) 2010 by the European Economic Association.

Suggested Citation

  • Marcel Fafchamps & Sanjeev Goyal & Marco J. van der Leij, 2010. "Matching and Network Effects," Journal of the European Economic Association, MIT Press, vol. 8(1), pages 203-231, March.
    • Handle: RePEc:tpr:jeurec:v:8:y:2010:i:1:p:203-231
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    References listed on IDEAS

    as
    1. Fafchamps Marcel, 2003. "Ethnicity and Networks in African Trade," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 2(1), pages 1-51, December.
    2. De Weerdt, Joachim & Dercon, Stefan, 2006. "Risk-sharing networks and insurance against illness," Journal of Development Economics, Elsevier, vol. 81(2), pages 337-356, December.
    3. Fafchamps Marcel, 2002. "Spontaneous Market Emergence," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 2(1), pages 1-37, June.
    4. Marcel Fafchamps, 2002. "Returns to social network capital among traders," Oxford Economic Papers, Oxford University Press, vol. 54(2), pages 173-206, April.
    5. Fafchamps, Marcel & Lund, Susan, 2003. "Risk-sharing networks in rural Philippines," Journal of Development Economics, Elsevier, vol. 71(2), pages 261-287, August.
    6. De Weerdt, Joachim & Dercon, Stefan, 2006. "Risk-sharing networks and insurance against illness," Journal of Development Economics, Elsevier, vol. 81(2), pages 337-356, December.
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    1. Marcel Fafchamps & Marco J. van der Leij & Tinbergen Institute and Erasmus University & Sanjeev Goyal & University of Essex, 2006. "Scientific Networks and Co-authorship," Economics Series Working Papers 256, University of Oxford, Department of Economics.
    2. Durlauf, Steven N. & Fafchamps, Marcel, 2005. "Social Capital," Handbook of Economic Growth, in: Philippe Aghion & Steven Durlauf (ed.), Handbook of Economic Growth, edition 1, volume 1, chapter 26, pages 1639-1699 Elsevier.

    More about this item

    JEL classification:

    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation

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