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Global Games with Strategic Substitutes

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In this paper we use a non cooperative equilibrium selection approach as a notion of stability in link formation games. Specifically, we follow the global games approach first introduced by Carlsson and van Damme (1993), to study the robustness of the set of Nash equilibria for a class of link formation games in strategic form with supermodular payo. functions. Interestingly, the equilibrium selected is in conflict with those predicted by the traditional cooperative refinements. Moreover, we get a conflict between stability and e.ciency even when no such conflict exists with the cooperative refinements. We discuss some practical issues that these di.erent theoretical approaches raise in reality. The paper also provides an extension of the global game theory that can be applied beyond network literature.

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Paper provided by Georgetown University, Department of Economics in its series Working Papers with number gueconwpa~03-03-07.

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Date of creation: 07 Mar 2003
Handle: RePEc:geo:guwopa:gueconwpa~03-03-07
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Georgetown University Department of Economics Washington, DC 20057-1036

Phone: 202-687-6074
Fax: 202-687-6102
Web page: http://econ.georgetown.edu/
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Order Information: Postal: Roger Lagunoff Professor of Economics Georgetown University Department of Economics Washington, DC 20057-1036
Web: http://econ.georgetown.edu/ Email:


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  1. John C. Harsanyi & Reinhard Selten, 1988. "A General Theory of Equilibrium Selection in Games," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262582384, July.
  2. Ken Hendricks & Michele Piccione & Guofu Tan, 1995. "The Economics of Hubs: The Case of Monopoly," Review of Economic Studies, Oxford University Press, vol. 62(1), pages 83-99.
  3. Tesfatsion, Leigh S., 1998. "Gale-Shapley Matching in an Evolutionary Trade Network Game," Staff General Research Papers Archive 1230, Iowa State University, Department of Economics.
  4. Gerard Weisbuch & Alan Kirman & Dorothea Herreiner, 1995. "Market Organization," Working Papers 95-11-102, Santa Fe Institute.
  5. Frankel, David M. & Morris, Stephen & Pauzner, Ady, 2003. "Equilibrium selection in global games with strategic complementarities," Journal of Economic Theory, Elsevier, vol. 108(1), pages 1-44, January.
  6. Carlsson, Hans & van Damme, Eric, 1993. "Global Games and Equilibrium Selection," Econometrica, Econometric Society, vol. 61(5), pages 989-1018, September.
  7. Stef Tijs & Anne van den Nouweland & Bhaskar Dutta, 1998. "Link formation in cooperative situations," International Journal of Game Theory, Springer;Game Theory Society, vol. 27(2), pages 245-256.
  8. Jackson, Matthew O. & Wolinsky, Asher, 1996. "A Strategic Model of Social and Economic Networks," Journal of Economic Theory, Elsevier, vol. 71(1), pages 44-74, October.
  9. Venkatesh Bala & Sanjeev Goyal, 2000. "A Noncooperative Model of Network Formation," Econometrica, Econometric Society, vol. 68(5), pages 1181-1230, September.
  10. Kohlberg, Elon & Mertens, Jean-Francois, 1986. "On the Strategic Stability of Equilibria," Econometrica, Econometric Society, vol. 54(5), pages 1003-1037, September.
  11. Deborah F. Minehart & Rachel E. Kranton, 2000. "original papers : Competition for goods in buyer-seller networks," Review of Economic Design, Springer;Society for Economic Design, vol. 5(3), pages 301-331.
  12. Gehrig, Thomas & Régibeau, Pierre & Rockett, Katharine, 1998. "Project Evaluation and Organizational Form," CEPR Discussion Papers 1888, C.E.P.R. Discussion Papers.
  13. Atsushi Kajii & Stephen Morris, 1997. "The Robustness of Equilibria to Incomplete Information," Econometrica, Econometric Society, vol. 65(6), pages 1283-1310, November.
  14. Montgomery, James D, 1991. "Social Networks and Labor-Market Outcomes: Toward an Economic Analysis," American Economic Review, American Economic Association, vol. 81(5), pages 1407-1418, December.
  15. Dutta, Bhaskar & Mutuswami, Suresh, 1997. "Stable Networks," Journal of Economic Theory, Elsevier, vol. 76(2), pages 322-344, October.
    • Dutta, Bhaskar & Mutuswami, Suresh, 1996. "Stable Networks," Working Papers 971, California Institute of Technology, Division of the Humanities and Social Sciences.
  16. (*), Anne van den Nouweland & Marco Slikker, 2000. "original papers : Network formation models with costs for establishing links," Review of Economic Design, Springer;Society for Economic Design, vol. 5(3), pages 333-362.
  17. John C Harsanyi, 1997. "Games with incomplete information played by "bayesian" players," Levine's Working Paper Archive 1175, David K. Levine.
  18. Xavier Vives, 2001. "Oligopoly Pricing: Old Ideas and New Tools," MIT Press Books, The MIT Press, edition 1, volume 1, number 026272040x, July.
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