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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

Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 8127.

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Date of creation: Dec 2010
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Handle: RePEc:cpr:ceprdp:8127

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Related research

Keywords: network formation; peer effects; welfare;

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References

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  8. Patacchini, Eleonora & Zenou, Yves, 2004. "Intergenerational Education Transmission: Neighborhood Quality and/or Parents' Involvement?," Working Paper Series 631, Research Institute of Industrial Economics.
  9. Coralio Ballester & Antoni Calvo-Armengol & Yves Zenou, 2005. "Who's Who in Networks. Wanted: the Key Player," NajEcon Working Paper Reviews 666156000000000586, www.najecon.org.
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Citations

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Cited by:
  1. Jacques Durieu & Hans Haller & Philippe Solal, 2011. "Nonspecific Networking," Games, MDPI, Open Access Journal, vol. 2(1), pages 87-113, February.
  2. 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.
  3. Xiaodong Liu & Eleonora Patacchini & Yves Zenou & Lung-Fei Lee, 2012. "Criminal Networks: Who is the Key Player?," Working Papers 2012.39, Fondazione Eni Enrico Mattei.
  4. 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.
  5. 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.
  6. Mohamed Belhaj & Sebastian Bervoets & Frédéric Deroïan, 2013. "Network Design under Local Complementarities," Working Papers halshs-00796487, HAL.

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