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Scientific Networks and Co-authorship

  • Marcel Fafchamps
  • Marco J. van der Leij

Using a database of all published articles in economic journals over the last 30 years, we investigate the determinants of scientific co-authorship. We find that, controlling for pair-wise fixed effects and author productivity, a new collaboration emerges faster if the two authors are more closely connected, either directly or indirectly, through collaborations with others. This effect is strong and robust. It is consistent with a referral model of the formation of scientific collaborations. We also find that large differences in research output between authors favor co-authorship, suggesting that scientific collaboration is more likely between authors with dissimilar ability and experience. This effect disappears if we limit the data to highly productive authors.

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File URL: http://www.economics.ox.ac.uk/materials/working_papers/paper256.pdf
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Paper provided by University of Oxford, Department of Economics in its series Economics Series Working Papers with number 256.

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Date of creation: 01 Feb 2006
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Handle: RePEc:oxf:wpaper:256
Contact details of provider: Postal: Manor Rd. Building, Oxford, OX1 3UQ
Web page: http://www.economics.ox.ac.uk/
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  1. Marcel Fafchamps & Susan Lund, 2000. "Risk-Sharing Networks in Rural Philippines," Economics Series Working Papers 10, University of Oxford, Department of Economics.
  2. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth Through Creative Destruction," Scholarly Articles 12490578, Harvard University Department of Economics.
  3. Garance Genicot & Debraj Ray, 2003. "Group Formation in Risk--Sharing Arrangements," Review of Economic Studies, Wiley Blackwell, vol. 70(1), pages 87-113, January.
  4. 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.
  5. Marcel Fafchamps, 2003. "Spontaneous Market Emergence," Economics Series Working Papers 138, University of Oxford, Department of Economics.
  6. 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.
  7. 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.
  8. 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.
  9. Philippe Aghion & Peter Howitt, 1990. "A Model of Growth Through Creative Destruction," NBER Working Papers 3223, National Bureau of Economic Research, Inc.
  10. Paul M Romer, 1999. "Endogenous Technological Change," Levine's Working Paper Archive 2135, David K. Levine.
  11. Simon Johnson & John McMillan & Christopher Woodruff, 2001. "Courts and Relational Contracts," NBER Working Papers 8572, National Bureau of Economic Research, Inc.
  12. Paul Oyer, 2006. "The Macro-Foundations of Microeconomics: Initial Labor Market Conditions and Long-Term Outcomes for Economists," NBER Working Papers 12157, National Bureau of Economic Research, Inc.
  13. 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.
  14. Marcel Fafchamps, 2002. "Returns to social network capital among traders," Oxford Economic Papers, Oxford University Press, vol. 54(2), pages 173-206, April.
  15. Marcel Fafchamps & Bart Minten, 2001. "Social Capital and Agricultural Trade," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 83(3), pages 680-685.
  16. Kaivan Munshi, 2003. "Networks In The Modern Economy: Mexican Migrants In The U.S. Labor Market," The Quarterly Journal of Economics, MIT Press, vol. 118(2), pages 549-599, May.
  17. Rachel E. Kranton & Deborah F. Minehart, 2001. "A Theory of Buyer-Seller Networks," American Economic Review, American Economic Association, vol. 91(3), pages 485-508, June.
  18. 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.
  19. Fisman Raymond J, 2003. "Ethnic Ties and the Provision of Credit: Relationship-Level Evidence from African Firms," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 3(1), pages 1-21, October.
  20. Kranton, Rachel E, 1996. "Reciprocal Exchange: A Self-Sustaining System," American Economic Review, American Economic Association, vol. 86(4), pages 830-51, September.
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