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Risk aversion and social networks

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  • Marco van der Leij

    ()
    (Universidad de Alicante)

  • Jaromir Kovarik

    (Universidad de Alicante)

Abstract

Agents involved in the formation of a social or economic network typically face uncertainty about the benefits of creating a link. However, the interplay of such uncertainty and risk attitudes has been neglected in the network formation literature. We propose a dynamic network formation model that builds on standard microeconomic concepts of utility maximization, incomplete information, and risk aversion. With our model, we discover a new mechanism that generates a correlation between network position and payoffs of individuals. Second, we show how the generated network architecture depends on the uncertainty in the environment it is embedded in.

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Bibliographic Info

Paper provided by Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie) in its series Working Papers. Serie AD with number 2012-01.

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Length: 36 pages
Date of creation: Jan 2012
Date of revision:
Publication status: Published by Ivie
Handle: RePEc:ivi:wpasad:2012-01

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Keywords: Network formation; risk aversion; clustering coefficient; degree distribution;

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References

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  1. Marcel Fafchamps & Marco van der Leij & Sanjeev Goyal, 2009. "Matching and network effects," Working Papers. Serie AD 2009-15, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie).
  2. Pramila Krishnan & Emanuela Sciubba, 2009. "Links and Architecture in Village Networks," Economic Journal, Royal Economic Society, vol. 119(537), pages 917-949, 04.
  3. Jackson, Matthew O. & Rogers, Brian W., 2005. "The economics of small worlds," Working Papers 1214, California Institute of Technology, Division of the Humanities and Social Sciences.
  4. Quoc-Anh Do & Stephen Leider & Markus M. Mobius & Tanya Rosenblat, 2008. "Directed Altruism and Enforced Reciprocity in Social Networks," Working Papers 17-2008, Singapore Management University, School of Economics.
  5. Bryan S. Graham, 2008. "Identifying Social Interactions Through Conditional Variance Restrictions," Econometrica, Econometric Society, vol. 76(3), pages 643-660, 05.
  6. Andrea Galeotti & Sanjeev Goyal & Jurjen Kamphorst, 2003. "Network Formation with Heterogeneous Players," Economics Discussion Papers 562, University of Essex, Department of Economics.
  7. Gubert, Flore & Fafchamps, Marcel, 2007. "Risk Sharing and Network Formation," Economics Papers from University Paris Dauphine 123456789/10840, Paris Dauphine University.
  8. 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.
  9. Sanjeev Goyal & Marco van der Leij & Jose Luis Moraga, 2004. "Economics: An Emerging Small World?," Tinbergen Institute Discussion Papers 04-001/1, Tinbergen Institute.
  10. David A. Jaeger & Thomas Dohmen & Armin Falk & David Huffman & Uwe Sunde & Holger Bonin, 2010. "Direct Evidence on Risk Attitudes and Migration," The Review of Economics and Statistics, MIT Press, vol. 92(3), pages 684-689, August.
  11. Coralio Ballester & Antoni Calvó-Armengol & Yves Zenou, 2004. "Who's Who in Networks. Wanted: The Key Player," Working Papers 178, Barcelona Graduate School of Economics.
  12. De Weerdt, Joachim, 2002. "Risk-Sharing and Endogenous Network Formation," Working Paper Series UNU-WIDER Research Paper , World Institute for Development Economic Research (UNU-WIDER).
  13. David Cesarini & Christopher T. Dawes & Magnus Johannesson & Paul Lichtenstein & Björn Wallace, 2009. "Genetic Variation in Preferences for Giving and Risk Taking," The Quarterly Journal of Economics, MIT Press, vol. 124(2), pages 809-842, May.
  14. Jan Eeckhout & Kaivan Munshi, 2010. "Matching in Informal Financial Institutions," Journal of the European Economic Association, MIT Press, vol. 8(5), pages 947-988, 09.
  15. Yann Bramoulle & Brian Rogers, 2009. "Diversity and Popularity in Social Networks," Discussion Papers 1475, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  16. Matthew O. Jackson & Brian W. Rogers, 2007. "Meeting Strangers and Friends of Friends: How Random Are Social Networks?," American Economic Review, American Economic Association, vol. 97(3), pages 890-915, June.
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