Information Sharing Networks in Linear Quadratic Games
We study the bilateral exchange of information in the context of linear quadratic games. An information structure is here represented by a non directed network, whose nodes are agents and whose links represent sharing agreements. We first study the equilibrium use of information in any given sharing network, finding that the extent to which a piece of information is "public" affects the equilibrium use of it, in line with previous results in the literature. We then study the incentives to share information ex-ante, highlighting the role of the elasticity of payoffs to the equilibrium volatility of one's own strategy and of one's opponents' strategies. For the case of uncorrelated signals we fully characterize pairwise stable networks for the general linear quadratic game. For the case of correlated signals, we study pair-wise stable networks for three specific linear quadratic games - Cournot oligopoly, Keynes’ beauty contest and Public good provision - in which strategies are substitute, complement and orthogonal, respectively. We show that signals’ correlation favors the transmission of information, but may also prevent all information from being transmitted.
|Date of creation:||May 2013|
|Date of revision:|
|Contact details of provider:|| Postal: Corso Magenta, 63 - 20123 Milan|
Web page: http://www.feem.it/
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Dasgupta, Sudipto & Shin, Jhinyoung, 1999. "Information sharing, information free-riding and capital structure in oligopolies," International Journal of Industrial Organization, Elsevier, vol. 17(1), pages 109-135, January.
- Raith, Michael, 1996. "A General Model of Information Sharing in Oligopoly," Journal of Economic Theory, Elsevier, vol. 71(1), pages 260-288, October.
- Paul Klemperer & Jeremy Bulow, 1998.
"Prices and the Winners Curse,"
Economics Series Working Papers
1998-W02, University of Oxford, Department of Economics.
- repec:hal:journl:halshs-00367692 is not listed on IDEAS
- Matthew O. Jackson & Asher Wolinsky, 1995.
"A Strategic Model of Social and Economic Networks,"
1098R, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Amir Ziv, 1993. "Information Sharing in Oligopoly: The Truth-Telling Problem," RAND Journal of Economics, The RAND Corporation, vol. 24(3), pages 455-465, Autumn.
- Ballester, Coralio & Calvó-Armengol, Antoni & Zenou, Yves, 2005.
"Who’s Who in Networks. Wanted: The Key Player,"
CEPR Discussion Papers
5329, C.E.P.R. Discussion Papers.
- Coralio Ballester & Antoni Calvó-Armengol & Yves Zenou, 2004. "Who's Who in Networks. Wanted: The Key Player," Working Papers 178, Barcelona Graduate School of Economics.
- 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.
- Gal-Or, Esther, 1985. "Information Sharing in Oligopoly," Econometrica, Econometric Society, vol. 53(2), pages 329-43, March.
- Jeanne Hagenbach & Frédéric Koessler, 2008.
"Strategic communication networks,"
PSE Working Papers
- Jeanne Hagenbach & Frédéric Koessler, 2009. "Strategic Communication Networks," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00367692, HAL.
- Jeanne Hagenbach & Frédéric Koessler, 2009. "Strategic communication networks," Documents de travail du Centre d'Economie de la Sorbonne 09005, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
- William Novshek & Hugo Sonnenschein, 1982. "Fulfilled Expectations Cournot Duopoly with Information Acquisition and Release," Bell Journal of Economics, The RAND Corporation, vol. 13(1), pages 214-218, Spring.
- Galeotti, Andrea & Ghiglino, Christian & Squintani, Francesco, 2009. "Strategic Information Transmission in Networks," Economics Discussion Papers 2974, University of Essex, Department of Economics.
- Novshek, William & Thoman, Lynda, 1998. "Information disaggregation and incentives for non-collusive information sharing," Economics Letters, Elsevier, vol. 61(3), pages 327-332, December.
- David Malueg & Shunichi Tsutsui, 1996. "Coalition-proof information exchanges," Journal of Economics, Springer, vol. 63(3), pages 259-278, October.
- Stephen Morris & Hyun Song Shin, 2002. "Social Value of Public Information," American Economic Review, American Economic Association, vol. 92(5), pages 1521-1534, December.
- repec:esx:essedp:668 is not listed on IDEAS
- Alison J. Kirby, 1988. "Trade Associations as Information Exchange Mechanisms," RAND Journal of Economics, The RAND Corporation, vol. 19(1), pages 138-146, Spring.
- Esther Gal-or, 1986. "Information Transmission—Cournot and Bertrand Equilibria," Review of Economic Studies, Oxford University Press, vol. 53(1), pages 85-92.
When requesting a correction, please mention this item's handle: RePEc:fem:femwpa:2013.47. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (barbara racah)
If references are entirely missing, you can add them using this form.