Matching and network effects
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 i and j forming a team is falling in the distance between i and j 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 percent. Research collaboration takes place in an environment where fairly detailed information concerning individual ability and productivity -reflected in publications, employment history, etc.- is publicly available. Our finding that social networks are powerful even in this setting suggests that they must affect matching processes more generally.
|Date of creation:||Jan 2009|
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- Marcel Fafchamps & Susan Lund, 2000.
"Risk-Sharing Networks in Rural Philippines,"
Economics Series Working Papers
10, University of Oxford, Department of Economics.
- 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.
- Sanjeev Goyal & Marco van der Leij & José Luis Moraga-Gonzàlez, 2004. "Economics: An Emerging Small World?," Working Papers 2004.84, Fondazione Eni Enrico Mattei.
- Sanjeev Goyal & Marco van der Leij & José Luis Moraga Gonzales, 2004. "Economics: An Emerging Small World?," CESifo Working Paper Series 1287, CESifo Group Munich.
- 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.
- 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.
- John McMillan & Christopher Woodruff, 1998. "Interfirm Relationships and Informal Credit in Vietnam," William Davidson Institute Working Papers Series 132, William Davidson Institute at the University of Michigan.
- McMillan, John & Woodruff, Christopher, 1998. "Inter-Firm Relationships and Informal Credit in Vietnam," CEPR Discussion Papers 2036, C.E.P.R. Discussion Papers.
- Marcel Fafchamps, 2002.
"Returns to social network capital among traders,"
Oxford Economic Papers,
Oxford University Press, vol. 54(2), pages 173-206, April.
- 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.
- 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.
- Stefan Dercon & Joachim de Weerdt, 2004. "Risk-Sharing Networks And Insurance Against Illness," Development and Comp Systems 0409019, EconWPA.
- 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.
- 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.
- 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.
- Garance Genicot & Debraj Ray, 2003.
"Group Formation in Risk-Sharing Arrangements,"
Review of Economic Studies,
Oxford University Press, vol. 70(1), pages 87-113.
- repec:dgr:uvatin:20060008 is not listed on IDEAS
- 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.
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