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Social interactions and spillovers

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  • Cabrales, Antonio
  • Calvó-Armengol, Antoni
  • Zenou, Yves

Abstract

The aim of this paper is to provide a tractable model where both socialization (or network formation) and productive efforts can be analyzed simultaneously. This permits a full-fledged equilibrium/welfare analysis of network formation with endogenous productive efforts and heterogeneous agents. We show that there exist two stable interior equilibria, which we can Pareto rank. The socially efficient outcome lies between these two equilibria. When the intrinsic returns to production and socialization increase, all equilibrium actions decrease at the Pareto-superior equilibrium, while they increase at the Pareto-inferior equilibrium. In both cases, the percentage change in socialization effort is higher (in absolute value) than that of the productive effort.

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Bibliographic Info

Article provided by Elsevier in its journal Games and Economic Behavior.

Volume (Year): 72 (2011)
Issue (Month): 2 (June)
Pages: 339-360

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Handle: RePEc:eee:gamebe:v:72:y:2011:i:2:p:339-360

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Web page: http://www.elsevier.com/locate/inca/622836

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Keywords: Peer effects Network formation Welfare;

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References

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  1. Antoni Calvó-Armengol & Rahmi Ilkiliç, 2005. "Pairwise-Stability and Nash Equilibria in Network Formation," Working Papers 2005.34, Fondazione Eni Enrico Mattei.
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  5. Dee, Thomas S., 2004. "Are there civic returns to education?," Journal of Public Economics, Elsevier, vol. 88(9-10), pages 1697-1720, August.
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  18. Bloch, Francis & Dutta, Bhaskar, 2005. "Communication Networks with Endogenous Link Strength," The Warwick Economics Research Paper Series (TWERPS) 723, University of Warwick, Department of Economics.
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Citations

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Cited by:
  1. Lee, Lung-Fei & Liu, Xiaodong & Patacchini, Eleonora & Zenou, Yves, 2011. "Criminal Networks: Who is the Key Player?," CEPR Discussion Papers 8185, C.E.P.R. Discussion Papers.
  2. Helsley, Robert W. & Zenou, Yves, 2011. "Social Networks and Interactions in Cities," IZA Discussion Papers 5506, Institute for the Study of Labor (IZA).
  3. Michael Koenig & Claudio Tessone & Yves Zenou, 2012. "Nestedness in Networks: A Theoretical Model and Some Applications," Discussion Papers 11-003, Stanford Institute for Economic Policy Research.
  4. König, Michael & Tessone, Claudio J. & Zenou, Yves, 2009. "A Dynamic Model of Network Formation with Strategic Interactions," CEPR Discussion Papers 7521, C.E.P.R. Discussion Papers.
  5. Mohamed Belhaj & Sebastian Bervoets & Frédéric Deroïan, 2013. "Network Design under Local Complementarities," AMSE Working Papers 1309, Aix-Marseille School of Economics, Marseille, France, revised 12 Feb 2013.
  6. Mohamed Belhaj & Sebastian Bervoets & Frédéric Deroïan, 2013. "Network Design under Local Complementarities," Working Papers halshs-00796487, HAL.
  7. Boris van Leeuwen & Theo Offerman & Arthur Schram, 2013. "Superstars Need Social Benefits: An Experiment on Network Formation," Tinbergen Institute Discussion Papers 13-112/I, Tinbergen Institute.
  8. Jacques Durieu & Hans Haller & Philippe Solal, 2011. "Nonspecific Networking," Games, MDPI, Open Access Journal, vol. 2(1), pages 87-113, February.
  9. Prat, Andrea & de Martí, Joan & Calvó-Armengol, Antoni, 0. "Communication and influence," Theoretical Economics, Econometric Society.

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