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Group Play in Games and the Role of Consent in Network Formation

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Author Info
Matthew Jackson
Gary Charness

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Abstract

We study games played between groups of players, where a given group decides which strategy it will play through a vote by its members. When groups consist of two voting players, our games can also be interpreted as network-formation games. In experiments on Stag Hunt games, we find that that the structure of the voting rule completely determines which equilibrium is played, independently of the payoff structure. This contrasts with the play of games between individuals, where payoffs play an important role in equilibrium selection. We also explore play between groups where one member of each group dictates the play of that group. We find that the dictator tends to play a less risky strategy when choosing for a group than when playing only for him or herself. We develop a new solution concept, robust-belief equilibrium, which explains the data that we observe. We provide results showing that this solution concept has application beyond the particular games in our experiments.

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Publisher Info
Paper provided by Econometric Society in its series Econometric Society 2004 North American Summer Meetings with number 654.

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Date of creation: 11 Aug 2004
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Handle: RePEc:ecm:nasm04:654

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References listed on IDEAS
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.:
  1. Bornstein, Gary & Gneezy, Uri & Nagel, Rosmarie, 2002. "The effect of intergroup competition on group coordination: an experimental study," Games and Economic Behavior, Elsevier, vol. 41(1), pages 1-25, October. [Downloadable!] (restricted)
    Other versions:
  2. Martin G. Kocher & Matthias Sutter, 2004. "The Decision Maker Matters: Individual versus Group Behaviour in Experimental Beauty-Contest Games," Papers on Strategic Interaction 2004-09, Max Planck Institute of Economics, Strategic Interaction Group. [Downloadable!]
    Other versions:
  3. Bergin, James & Lipman, Barton L, 1996. "Evolution with State-Dependent Mutations," Econometrica, Econometric Society, vol. 64(4), pages 943-56, July. [Downloadable!] (restricted)
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  4. 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.
  5. Page Jr, Frank H & Wooders, Myrna H & Kamat, Samir, 2001. "Networks And Farsighted Stability," The Warwick Economics Research Paper Series (TWERPS) 621, University of Warwick, Department of Economics. [Downloadable!]
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  6. Venkatesh Bala & Sanjeev Goyal, 2000. "A Noncooperative Model of Network Formation," Econometrica, Econometric Society, vol. 68(5), pages 1181-1230, September.
  7. Chwe Michael Suk-Young, 1994. "Farsighted Coalitional Stability," Journal of Economic Theory, Elsevier, vol. 63(2), pages 299-325, August. [Downloadable!] (restricted)
  8. Kandori, Michihiro & Mailath, George J & Rob, Rafael, 1993. "Learning, Mutation, and Long Run Equilibria in Games," Econometrica, Econometric Society, vol. 61(1), pages 29-56, January. [Downloadable!] (restricted)
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  9. Jackson, Matthew O. & Watts, Alison, 2002. "The Evolution of Social and Economic Networks," Journal of Economic Theory, Elsevier, vol. 106(2), pages 265-295, October. [Downloadable!] (restricted)
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  10. Stahl Dale O. & Wilson Paul W., 1995. "On Players' Models of Other Players: Theory and Experimental Evidence," Games and Economic Behavior, Elsevier, vol. 10(1), pages 218-254, July. [Downloadable!] (restricted)
  11. Alan S. Blinder & John Morgan, 2000. "Are Two Heads Better Than One?: An Experimental Analysis of Group vs. Individual Decisionmaking," NBER Working Papers 7909, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  12. Guillaume R. Frechette & John H. Kagel & Steven Lehrer, 2000. "Bargaining in Legislatures: An Experimental Investigation of Open versus Closed Amendment Rules," Econometric Society World Congress 2000 Contributed Papers 1515, Econometric Society. [Downloadable!]
  13. Bhaskar Dutta & Sayantan Ghosal & Debraj Ray, 2004. "Farsighted Network Formation," Working papers 122, Centre for Development Economics, Delhi School of Economics. [Downloadable!]
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  14. Cason, Timothy N & Mui, Vai-Lam, 1997. "A Laboratory Study of Group Polarisation in the Team Dictator Game," Economic Journal, Royal Economic Society, vol. 107(444), pages 1465-83, September. [Downloadable!] (restricted)
  15. Frankel, David M. & Morris, Stephen & Pauzner, Ady, 2004. "Equilibrium Selection in Global Games with Strategic Complementarities," Staff General Research Papers 11920, Iowa State University, Department of Economics.
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  16. Carlsson, Hans & van Damme, Eric, 1993. "Global Games and Equilibrium Selection," Econometrica, Econometric Society, vol. 61(5), pages 989-1018, September. [Downloadable!] (restricted)
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  17. John Duggan, . "Non-Cooperative Games Among Groups," Wallis Working Papers WP21, University of Rochester - Wallis Institute of Political Economy.
  18. Charness, Gary, 2000. "Responsibility and effort in an experimental labor market," Journal of Economic Behavior & Organization, Elsevier, vol. 42(3), pages 375-384, July. [Downloadable!] (restricted)
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  19. David J. Cooper & John H. Kagel, 2005. "Are Two Heads Better Than One? Team versus Individual Play in Signaling Games," American Economic Review, American Economic Association, vol. 95(3), pages 477-509, June. [Downloadable!]
  20. 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. [Downloadable!] (restricted)
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  21. Urs Fischbacher, 2007. "z-Tree: Zurich toolbox for ready-made economic experiments," Experimental Economics, Springer, vol. 10(2), pages 171-178, June. [Downloadable!] (restricted)
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Cited by:
(explanations, 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.)

  1. John Duffy & Dean Corbae, 2006. "Experiments with Network Formation," Working Papers 292, University of Pittsburgh, Department of Economics, revised Aug 2007. [Downloadable!]
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  2. Ghosal, Sayantan & Proto, Eugenio, 2008. "Democracy, Collective Action and Intra-elite Conflict," The Warwick Economics Research Paper Series (TWERPS) 844, University of Warwick, Department of Economics. [Downloadable!]
    Other versions:
  3. Alexander Elbittar & Andrei Gomberg & Laura Sour, 2005. "Group Decision-Making and Voting in Ultimatum Bargaining: An Experimental Study," Experimental 0511002, EconWPA. [Downloadable!]
    Other versions:
  4. Ghosal, Sayantan & Proto, Eugenio, 2007. "The Transition to Democracy : Collective Action and Intra-elite Confict," The Warwick Economics Research Paper Series (TWERPS) 807, University of Warwick, Department of Economics. [Downloadable!]
  5. Francesco Feri & Bernd Irlenbusch & Matthias Sutter, 2009. "Efficiency Gains from Team-Based Coordination – Large-Scale Experimental Evidence," Working Paper Series of the Max Planck Institute for Research on Collective Goods 2009_14, Max Planck Institute for Research on Collective Goods. [Downloadable!]
    Other versions:
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