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Strategic Communication Networks

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Author Info

  • Jeanne Hagenbach

    (CES - Centre d'économie de la Sorbonne - CNRS : UMR8174 - Université Paris I - Panthéon-Sorbonne)

  • Frédéric Koessler

    (PSE - Paris-Jourdan Sciences Economiques - CNRS : UMR8545 - École des Hautes Études en Sciences Sociales (EHESS) - École des Ponts ParisTech (ENPC) - École normale supérieure [ENS] - Paris)

Abstract

We consider situations in which individuals would like to choose an action which is close to that of others, as well as close to a state of nature, with the ideal proximity to the state varying across agents. Before this coordination game is played, a cheap-talk communication stage is offered to the individuals who decide to whom they reveal their private information about the state. The information transmission occurring in the communication stage is characterized by a strategic communication network. We provide an explicit link between players' preferences and the equilibrium strategic communication networks. A key feature of our equilibrium characterization is that whether communication takes place between two agents not only depends on the conflict of interest between these agents, but also on the number and preferences of the other agents with whom they communicate. Apart from some specific cases, the equilibrium communication networks are quite complex despite our simple one-dimensional description of preference heterogeneity. In general, strategic communication networks cannot be completely Pareto-ranked, but expected social welfare always increases as the communication network expands.

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Bibliographic Info

Paper provided by HAL in its series Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) with number halshs-00367692.

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Date of creation: Feb 2009
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Handle: RePEc:hal:cesptp:halshs-00367692

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Related research

Keywords: Cheap talk ; coordination ; incomplete information ; networks;

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References

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  1. Okuno-Fujiwara, Masahiro & Postlewaite, Andrew & Suzumura, Kotaro, 1990. "Strategic Information Revelation," Review of Economic Studies, Wiley Blackwell, vol. 57(1), pages 25-47, January.
  2. Antoni Calvó-Armengol & Joan de Martí, 2007. "Communication Networks: Knowledge and Decisions," American Economic Review, American Economic Association, vol. 97(2), pages 86-91, May.
  3. Van Zandt, Timothy & Vives, Xavier, 2003. "Monotone Equilibria in Bayesian Games of Strategic Complementarities," CEPR Discussion Papers 4103, C.E.P.R. Discussion Papers.
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Citations

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Cited by:
  1. Büchel, Berno & Hellmann, Tim & Klößner, Stefan, 2013. "Opinion Dynamics and Wisdom under Conformity," Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order 79770, Verein für Socialpolitik / German Economic Association.
  2. Daron Acemoglu & Kostas Bimpikis & Asuman Ozdaglar, 2010. "Dynamics of Information Exchange in Endogenous Social Networks," NBER Working Papers 16410, National Bureau of Economic Research, Inc.
  3. Salvatore Piccolo & Emanuele Tarantino, 2011. "Managerial Compensations and Information Sharing under Moral Hazard: Is Transparency Good?," CSEF Working Papers 294, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
  4. Wang, Yun, 2013. "The result of world powers in WTO: A cheap-talk game under different communication protocols," China Economic Review, Elsevier, vol. 27(C), pages 192-207.
  5. Garcia, Daniel, 2012. "Communication and Information Acquisition in Networks," MPRA Paper 55481, University Library of Munich, Germany, revised 24 Apr 2014.
  6. Salvatore Piccolo, 2011. "Communicating Vertical Hierarchies: the Adverse Selection Case," CSEF Working Papers 273, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
  7. Syngjoo Choi & Jihong Lee, 2014. "Communication, Coordination, And Networks," Journal of the European Economic Association, European Economic Association, vol. 12(1), pages 223-247, 02.
  8. Prat, Andrea & de Martí, Joan & Calvó-Armengol, Antoni, 0. "Communication and influence," Theoretical Economics, Econometric Society.
  9. Rantakari, Heikki, 2014. "A simple model of project selection with strategic communication and uncertain motives," Journal of Economic Behavior & Organization, Elsevier, vol. 102(C), pages 14-42.
  10. Jeanne Hagenbach & Frédéric Koessler, 2011. "Full Disclosure in Decentralized Organizations," PSE Working Papers halshs-00652279, HAL.
  11. Daron Acemoglu & Asuman Ozdaglar, 2011. "Opinion Dynamics and Learning in Social Networks," Dynamic Games and Applications, Springer, vol. 1(1), pages 3-49, March.
  12. Acemoglu, Daron & Ozdaglar, Asuman & ParandehGheibi, Ali, 2010. "Spread of (mis)information in social networks," Games and Economic Behavior, Elsevier, vol. 70(2), pages 194-227, November.
  13. Maria Goltsman & Gregory Pavlov, 2008. "How to Talk to Multiple Audiences," UWO Department of Economics Working Papers 20081, University of Western Ontario, Department of Economics.
  14. Sergio Currarini & Francesco Feri, 2013. "Information Sharing Networks in Linear Quadratic Games," Working Papers 2013.47, Fondazione Eni Enrico Mattei.
  15. McGee, Andrew & Yang, Huanxing, 2013. "Cheap talk with two senders and complementary information," Games and Economic Behavior, Elsevier, vol. 79(C), pages 181-191.
  16. Andrea Galeotti & Christian Ghiglino & Francesco Squintani, 2009. "Strategic Information Transmission in Networks," Economics Discussion Papers 668, University of Essex, Department of Economics.
  17. Lai, Ernest K., 2014. "Expert advice for amateurs," Journal of Economic Behavior & Organization, Elsevier, vol. 103(C), pages 1-16.

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