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Scientific Networks and Co-authorship

Author

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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.

Suggested Citation

  • Marcel Fafchamps & Marco J. van der Leij, 2006. "Scientific Networks and Co-authorship," Economics Series Working Papers 256, University of Oxford, Department of Economics.
  • Handle: RePEc:oxf:wpaper:256
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    File URL: http://www.economics.ox.ac.uk/materials/working_papers/paper256.pdf
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    References listed on IDEAS

    as
    1. Marcel Fafchamps, 2004. "Market Institutions in Sub-Saharan Africa: Theory and Evidence," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262062364, January.
    2. De Weerdt, Joachim & Dercon, Stefan, 2006. "Risk-sharing networks and insurance against illness," Journal of Development Economics, Elsevier, pages 337-356.
    3. John McMillan & Christopher Woodruff, 1999. "Interfirm Relationships and Informal Credit in Vietnam," The Quarterly Journal of Economics, Oxford University Press, pages 1285-1320.
    4. Fafchamps Marcel, 2002. "Spontaneous Market Emergence," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 2(1), pages 1-37, June.
    5. Montgomery, James D, 1991. "Social Networks and Labor-Market Outcomes: Toward an Economic Analysis," American Economic Review, American Economic Association, pages 1407-1418.
    6. 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.
    7. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, pages 323-351.
    8. Greif, Avner, 1993. "Contract Enforceability and Economic Institutions in Early Trade: the Maghribi Traders' Coalition," American Economic Review, American Economic Association, pages 525-548.
    9. 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.
    10. De Weerdt, Joachim & Dercon, Stefan, 2006. "Risk-sharing networks and insurance against illness," Journal of Development Economics, Elsevier, pages 337-356.
    11. Sanjeev Goyal & Marco J. van der Leij & José Luis Moraga-Gonzalez, 2006. "Economics: An Emerging Small World," Journal of Political Economy, University of Chicago Press, pages 403-432.
    12. Kaivan Munshi, 2003. "Networks in the Modern Economy: Mexican Migrants in the U. S. Labor Market," The Quarterly Journal of Economics, Oxford University Press, vol. 118(2), pages 549-599.
    13. Kranton, Rachel E, 1996. "Reciprocal Exchange: A Self-Sustaining System," American Economic Review, American Economic Association, pages 830-851.
    14. Marcel Fafchamps, 2002. "Returns to social network capital among traders," Oxford Economic Papers, Oxford University Press, pages 173-206.
    15. Fafchamps, Marcel & Lund, Susan, 2003. "Risk-sharing networks in rural Philippines," Journal of Development Economics, Elsevier, pages 261-287.
    16. Rachel E. Kranton & Deborah F. Minehart, 2001. "A Theory of Buyer-Seller Networks," American Economic Review, American Economic Association, pages 485-508.
    17. Garance Genicot & Debraj Ray, 2003. "Group Formation in Risk-Sharing Arrangements," Review of Economic Studies, Oxford University Press, vol. 70(1), pages 87-113.
    18. 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.
    19. Fafchamps, Marcel & Lund, Susan, 2003. "Risk-sharing networks in rural Philippines," Journal of Development Economics, Elsevier, pages 261-287.
    20. 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, pages 1-21.
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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, pages 1002-1013.
    2. Fafchamps, Marcel & Gubert, Flore, 2007. "The formation of risk sharing networks," Journal of Development Economics, Elsevier, vol. 83(2), pages 326-350, July.

    More about this item

    Keywords

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

    JEL classification:

    • J41 - Labor and Demographic Economics - - Particular Labor Markets - - - Labor Contracts
    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation

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