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Conversations Among Competitors

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  • Jeremy C. Stein

Abstract

I develop a model of bilateral conversations in which players may honestly exchange ideas with their competitors. The key to incentive compatibility is a strong form of complementarity in the information structure: a player can only generate a useful new insight on a given topic if he has access to his counterpart's previous thoughts on the topic. I then embed this model into a linear social network in which player A first can have a conversation with player B, then player B can have a conversation with player C, and so on. I show that relatively underdeveloped ideas can travel long distances over the network and thus be shared by many agents. More valuable ideas, by contrast, tend to remain localized among small groups of agents.

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File URL: http://www.nber.org/papers/w13370.pdf
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Bibliographic Info

Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 13370.

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Date of creation: Sep 2007
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Publication status: published as Jeremy C. Stein, 2008. "Conversations among Competitors," American Economic Review, American Economic Association, vol. 98(5), pages 2150-62, December.
Handle: RePEc:nbr:nberwo:13370

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References

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  1. Mathias Dewatripont & Jean Tirole, 2005. "Modes of Communication," Journal of Political Economy, University of Chicago Press, vol. 113(6), pages 1217-1238, December.
  2. A. Banerjee & Drew Fudenberg, 2010. "Word-of-Mouth Communication and Social Learning," Levine's Working Paper Archive 425, David K. Levine.
  3. Aghion, P. & Howitt, P., 1989. "A Model Of Growth Through Creative Destruction," UWO Department of Economics Working Papers 8904, University of Western Ontario, Department of Economics.
  4. Harrison Hong & Jeffrey D. Kubik & Jeremy C. Stein, 2003. "The Neighbor's Portfolio: Word-of-Mouth Effects in the Holdings and Trade of Money Managers," NBER Working Papers 9711, National Bureau of Economic Research, Inc.
  5. Krishna, Vijay & Morgan, John, 2004. "The art of conversation: eliciting information from experts through multi-stage communication," Journal of Economic Theory, Elsevier, vol. 117(2), pages 147-179, August.
  6. Antonio Mele, 2008. "Information Linkages and Correlated Trading," FMG Discussion Papers dp620, Financial Markets Group.
  7. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth Through Creative Destruction," Scholarly Articles 12490578, Harvard University Department of Economics.
  8. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-51, November.
  9. Lauren Cohen & Andrea Frazzini & Christopher Malloy, 2007. "The Small World of Investing: Board Connections and Mutual Fund Returns," NBER Working Papers 13121, National Bureau of Economic Research, Inc.
  10. Hellmann, Thomas F & Perotti, Enrico C, 2006. "The Circulation of Ideas: Firms Versus Markets," CEPR Discussion Papers 5469, C.E.P.R. Discussion Papers.
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Cited by:
  1. Thomas Hellman & Enrico Perotti, 2010. "The Circulation of Ideas in Firms and Markets," Working Papers 2010.47, Fondazione Eni Enrico Mattei.
  2. Michela Rancan, 2013. "The Value of Social Networks in Financial Markets," RSCAS Working Papers 2013/21, European University Institute.
  3. Bernhard Ganglmair & Emanuele Tarantino, 2011. "Patent Disclosure in Standard Setting," Working Papers 11-15, NET Institute.
  4. Manela, Asaf, 2014. "The value of diffusing information," Journal of Financial Economics, Elsevier, vol. 111(1), pages 181-199.
  5. Paolo Colla & Antonio Mele, 2010. "Information Linkages and Correlated Trading," Review of Financial Studies, Society for Financial Studies, vol. 23(1), pages 203-246, January.
  6. Wioletta Dziuda & Ronen Gradwohl, 2013. "Achieving Cooperation under Privacy Concerns," Discussion Papers 1572, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  7. Gupta-Mukherjee, Swasti, 2013. "When active fund managers deviate from their peers: Implications for fund performance," Journal of Banking & Finance, Elsevier, vol. 37(4), pages 1286-1305.
  8. Carolin Haeussler & Lin Jiang & Jerry Thursby & Marie C. Thursby, 2009. "Specific and General Information Sharing Among Academic Scientists," NBER Working Papers 15315, National Bureau of Economic Research, Inc.
  9. Haeussler, Carolin & Jiang, Lin & Thursby, Jerry & Thursby, Marie, 2014. "Specific and general information sharing among competing academic researchers," Research Policy, Elsevier, vol. 43(3), pages 465-475.
  10. Markus Kinateder, 2009. "Team Formation in a Network," Working Papers 2009.36, Fondazione Eni Enrico Mattei.

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