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Matching and Network Effects

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  • 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.

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Bibliographic Info

Article provided by MIT Press in its journal Journal of the European Economic Association.

Volume (Year): 8 (2010)
Issue (Month): 1 (03)
Pages: 203-231

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Handle: RePEc:tpr:jeurec:v:8:y:2010:i:1:p:203-231

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References

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  1. Marcel Fafchamps, 2002. "Returns to social network capital among traders," Oxford Economic Papers, Oxford University Press, vol. 54(2), pages 173-206, April.
  2. Simon Johnson & John McMillan & Christopher Woodruff, 2001. "Courts and Relational Contracts," NBER Working Papers 8572, National Bureau of Economic Research, Inc.
  3. 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.
  4. John McMillan & Christopher Woodruff, 1999. "Interfirm Relationships And Informal Credit In Vietnam," The Quarterly Journal of Economics, MIT Press, vol. 114(4), pages 1285-1320, November.
  5. Garance Genicot & Debraj Ray, 2003. "Group Formation in Risk-Sharing Arrangements," Review of Economic Studies, Oxford University Press, vol. 70(1), pages 87-113.
  6. Marcel Fafchamps, 2004. "Market Institutions in Sub-Saharan Africa: Theory and Evidence," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262062364, December.
  7. Stefan Dercon & Joachim De Weerdt, 2002. "Risk-sharing networks and insurance against illness," CSAE Working Paper Series 2002-16, Centre for the Study of African Economies, University of Oxford.
  8. 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.
  9. Fafchamps, Marcel & Lund, Susan, 2003. "Risk-sharing networks in rural Philippines," Journal of Development Economics, Elsevier, vol. 71(2), pages 261-287, August.
  10. van der Leij Marco & Goyal Sanjeev, 2011. "Strong Ties in a Small World," Review of Network Economics, De Gruyter, vol. 10(2), pages 1-22, June.
  11. 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.
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Citations

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Cited by:
  1. Berger, Allen N. & Kick, Thomas & Koetter, Michael & Schaeck, Klaus, 2011. "Does it pay to have friends? Social ties and executive appointments in banking," Discussion Paper Series 2: Banking and Financial Studies 2011,18, Deutsche Bundesbank, Research Centre.
  2. Ernest Miguélez, 2012. "How do geographically mobile innovators influence network formation?," Papers in Evolutionary Economic Geography (PEEG) 1208, Utrecht University, Section of Economic Geography, revised May 2012.
  3. repec:wip:wpaper:7 is not listed on IDEAS
  4. Yann Bramoullé & Bernard Fortin, 2009. "The Econometrics of Social Networks," Cahiers de recherche 0913, CIRPEE.
  5. Marco van der Leij & Jaromir Kovarik, 2012. "Risk aversion and social networks," Working Papers. Serie AD 2012-01, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie).
  6. Cilem Selin Hazir & Corinne Autant-Bernard, 2012. "Using Affiliation Networks to Study the Determinants of Multilateral Research Cooperation Some empirical evidence from EU Framework Programs in biotechnology," Working Papers halshs-00697556, HAL.
  7. Cilem Selin Hazir & Corinne Autant-Bernard, 2012. "Using Affiliation Networks to Study the Determinants of Multilateral Research Cooperation Some empirical evidence from EU Framework Programs in biotechnology," Working Papers 1212, Groupe d'Analyse et de Théorie Economique (GATE), Centre national de la recherche scientifique (CNRS), Université Lyon 2, Ecole Normale Supérieure.
  8. Margherita Comola & Mariapia Mendola, 2013. "The Formation of Migrant Networks," Development Working Papers 353, Centro Studi Luca d\'Agliano, University of Milano.
  9. Ernest Miguelez, 2013. "How does geographical mobility of inventors influence network formation?," WIPO Economic Research Working Papers 07, World Intellectual Property Organization - Economics and Statistics Division, revised Apr 2013.
  10. Cassi, Lorenzo & Plunket, Anne, 2012. "Research collaboration in co-­inventor networks: combining closure,bridging and proximities," MPRA Paper 39481, University Library of Munich, Germany.
  11. Cassi, Lorenzo & Plunket, Anne, 2013. "Proximity, network formation and inventive performance: in search of the proximity paradox," MPRA Paper 47388, University Library of Munich, Germany.
  12. Michael Koenig, 2012. "The Formation of Networks with Local Spillovers and Limited Observability," Discussion Papers 11-004, Stanford Institute for Economic Policy Research.
  13. Matthias Krapf, 2012. "Age and Complementarity in Scientific Collaboration," Working Paper Series of the Department of Economics, University of Konstanz 2012-18, Department of Economics, University of Konstanz.
  14. Cilem Selin Hazir, 2011. "Conceptualizing the Role of Geographical Proximity in Project Based R&D Networks: A Literature Survey," ERSA conference papers ersa11p1616, European Regional Science Association.

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