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Social Networks

  • de Marti, Joan

    (Universitat Pompeu Fabra)

  • Zenou, Yves

    ()

    (Research Institute of Industrial Economics (IFN))

We survey the literature on social networks by putting together the economics, sociological and physics/applied mathematics approaches, showing their similarities and differences. We expose, in particular, the two main ways of modeling network formation. While the physics/applied mathematics approach is capable of reproducing most observed networks, it does not explain why they emerge. On the contrary, the economics approach is very precise in explaining why networks emerge but does a poor job in matching real-world networks. We also analyze behaviors on networks, which take networks as given and focus on the impact of their structure on individuals’ outcomes. Using a game-theoretical framework, we then compare the results with those obtained in sociology.

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Paper provided by Research Institute of Industrial Economics in its series Working Paper Series with number 816.

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Length: 31 pages
Date of creation: 09 Dec 2009
Date of revision:
Handle: RePEc:hhs:iuiwop:0816
Contact details of provider: Postal: Research Institute of Industrial Economics, Box 55665, SE-102 15 Stockholm, Sweden
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Fax: +46 8 665 4599
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  1. Calvó-Armengol, Antoni & Zenou, Yves, 2001. "Job Matching, Social Network and Word-of-Mouth Communication," CEPR Discussion Papers 2797, C.E.P.R. Discussion Papers.
  2. Antoni Calvo-Armengol & Eleonora Patacchini & Yves Zenou, 2008. "Peer Effects and Social Networks in Education," CReAM Discussion Paper Series 0814, Centre for Research and Analysis of Migration (CReAM), Department of Economics, University College London.
  3. Calvo-Armengol, Antoni, 2004. "Job contact networks," Journal of Economic Theory, Elsevier, vol. 115(1), pages 191-206, March.
  4. Patacchini, Eleonora & Zenou, Yves, 2008. "The strength of weak ties in crime," European Economic Review, Elsevier, vol. 52(2), pages 209-236, February.
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  7. Antoni Calvó-Armengol & Yves Zenou, 2003. "Social Networks and Crime Decisions: The Role of Social Structure in Facilitating Delinquent Behavior," Working Papers 52, Barcelona Graduate School of Economics.
  8. Steven Shavell & A. Mitchell Polinsky, 2000. "The Economic Theory of Public Enforcement of Law," Journal of Economic Literature, American Economic Association, vol. 38(1), pages 45-76, March.
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  20. Chwe, Michael Suk-Young, 2000. "Communication and Coordination in Social Networks," Review of Economic Studies, Wiley Blackwell, vol. 67(1), pages 1-16, January.
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  24. Calvó-Armengol, Antoni & Patacchini, Eleonora & Zenou, Yves, 2005. "Peer Effects and Social Networks in Education and Crime," CEPR Discussion Papers 5244, C.E.P.R. Discussion Papers.
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  28. Matthew O. Jackson & Leeat Yariv, 2007. "Diffusion of Behavior and Equilibrium Properties in Network Games," American Economic Review, American Economic Association, vol. 97(2), pages 92-98, May.
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  35. Fryer, Roland & Echenique, Federico, 2007. "A Measure of Segregation Based on Social Interactions," Scholarly Articles 2958220, Harvard University Department of Economics.
  36. De Martí, Joan & Zenou, Yves, 2009. "Ethnic Identity and Social Distance in Friendship Formation," CEPR Discussion Papers 7566, C.E.P.R. Discussion Papers.
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