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Scientific Networks and Co-authorship

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  • Marcel Fafchamps
  • Marco J. van der Leij

Abstract

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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Bibliographic Info

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

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Keywords: Job Referral; Networks; Assortative Matching; Scientific Collaboration; Academia; Economics;

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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. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, Econometric Society, vol. 60(2), pages 323-51, March.
  3. Marcel Fafchamps & Susan Lund, . "Risk Sharing Networks in Rural Philippines," Working Papers, Stanford University, Department of Economics 97014, Stanford University, Department of Economics.
  4. Montgomery, James D, 1991. "Social Networks and Labor-Market Outcomes: Toward an Economic Analysis," American Economic Review, American Economic Association, American Economic Association, vol. 81(5), pages 1407-18, December.
  5. 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, De Gruyter, vol. 3(1), pages 1-21, October.
  6. 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.
  7. Sanjeev Goyal & Marco van der Leij & Jose Luis Moraga, 2004. "Economics: An Emerging Small World?," Tinbergen Institute Discussion Papers 04-001/1, Tinbergen Institute.
  8. McMillan, John & Woodruff, Christopher, 1998. "Inter-Firm Relationships and Informal Credit in Vietnam," CEPR Discussion Papers, C.E.P.R. Discussion Papers 2036, C.E.P.R. Discussion Papers.
  9. Paul Romer, 1989. "Endogenous Technological Change," NBER Working Papers 3210, National Bureau of Economic Research, Inc.
  10. 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.
  11. Greif, Avner, 1993. "Contract Enforceability and Economic Institutions in Early Trade: the Maghribi Traders' Coalition," American Economic Review, American Economic Association, American Economic Association, vol. 83(3), pages 525-48, June.
  12. Fafchamps Marcel, 2002. "Spontaneous Market Emergence," The B.E. Journal of Theoretical Economics, De Gruyter, De Gruyter, vol. 2(1), pages 1-37, June.
  13. Garance Genicot & Debraj Ray, 2003. "Group Formation in Risk--Sharing Arrangements," Review of Economic Studies, Wiley Blackwell, Wiley Blackwell, vol. 70(1), pages 87-113, January.
  14. Rachel E. Kranton & Deborah F. Minehart, 2001. "A Theory of Buyer-Seller Networks," American Economic Review, American Economic Association, American Economic Association, vol. 91(3), pages 485-508, June.
  15. Marcel Fafchamps, 2004. "Market Institutions in Sub-Saharan Africa: Theory and Evidence," MIT Press Books, The MIT Press, The MIT Press, edition 1, volume 1, number 0262062364, December.
  16. Marcel Fafchamps & Bart Minten, 2001. "Social Capital and Agricultural Trade," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, Agricultural and Applied Economics Association, vol. 83(3), pages 680-685.
  17. Simon Johnson & John McMillan, 2002. "Courts and Relational Contracts," Journal of Law, Economics and Organization, Oxford University Press, Oxford University Press, vol. 18(1), pages 221-277, April.
  18. Kaivan Munshi, 2003. "Networks In The Modern Economy: Mexican Migrants In The U.S. Labor Market," The Quarterly Journal of Economics, MIT Press, MIT Press, vol. 118(2), pages 549-599, May.
  19. Marco van der Leij & Sanjeev Goyal, 2010. "Strong ties in a small world," Working Papers. Serie AD, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie) 2010-02, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie).
  20. Kranton, Rachel E, 1996. "Reciprocal Exchange: A Self-Sustaining System," American Economic Review, American Economic Association, American Economic Association, vol. 86(4), pages 830-51, September.
  21. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth Through Creative Destruction," Scholarly Articles 12490578, Harvard University Department of Economics.
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Citations

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Cited by:
  1. Bidault, Francis & Hildebrand, Thomas, 2014. "The distribution of partnership returns: Evidence from co-authorships in economics journals," Research Policy, Elsevier, Elsevier, vol. 43(6), pages 1002-1013.
  2. Dev, Pritha, 2010. "Identity and Fragmentation in Networks," MPRA Paper 21632, University Library of Munich, Germany.
  3. Francis Bidault & Thomas Hildebrand, 2012. "The distribution of partnerships benefits: Evidence from co-authorships in economics journals," ESMT Research Working Papers ESMT-12-08, ESMT European School of Management and Technology.
  4. Gubert, Flore & Fafchamps, Marcel, 2007. "The Formation of Risk Sharing Networks," Economics Papers from University Paris Dauphine 123456789/4392, Paris Dauphine University.
  5. Alberto Baccini & Lucio Barabesi, 2008. "Interlocking Editorship. A Network Analysis of the Links Between Economic Journals," Department of Economics University of Siena, Department of Economics, University of Siena 532, Department of Economics, University of Siena.

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