Group Decision-Making in the Shadow of Disagreement
A model of group decision-making is studied, in which one of two alternatives must be chosen. While group members differ in their valuations of the alternatives, everybody prefers some alternative to disagreement. Our model is distinguished by three features: private information regarding valuations, varying intensities in the preference for one out-come over the other, and the option to declare neutrality in order to avoid disagreement. We uncover a variant on the “tyranny of the majority": there is always an equilibrium in which the majority is more aggressive in pushing its alternative, thus enforcing their will via both numbers and voice. However, under very general conditions an aggressive minority equilibrium inevitably makes an appearance, provided that the group is large enough. This equilibrium displays a “tyranny of the minority": it is always true that the increased aggression of the minority more than compensates for smaller number, leading to the minority outcome being implemented with larger probability than the majority alternative. In all cases the option to remain neutral ensures that the probability of disagreement is bounded away from one (as group size changes), regardless of the supermajority value needed for agreement, as long as it is not unanimity.
|Date of creation:||May 2004|
|Contact details of provider:|| Postal: Corso Magenta, 63 - 20123 Milan|
Web page: http://www.feem.it/
More information through EDIRC
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.:
- Casella, Alessandra & Palfrey, Thomas R. & Riezman, Raymond, 2006.
"Minorities and storable votes,"
1261, California Institute of Technology, Division of the Humanities and Social Sciences.
- Alessandra Casella & Thomas Palfrey & Raymond Riezman, 2013. "Minorities and Storable Votes," World Scientific Book Chapters, in: International Trade Agreements and Political Economy, chapter 15, pages 247-282 World Scientific Publishing Co. Pte. Ltd..
- Casella, Alessandra & Palfrey, Thomas & Riezman, Raymond, 2008. "Minorities and Storable Votes," Quarterly Journal of Political Science, now publishers, vol. 3(2), pages 165-200, July.
- Casella, Alessandra & Palfrey, Thomas R & Riezman, Raymond, 2005. "Minorities and Storable Votes," CEPR Discussion Papers 5278, C.E.P.R. Discussion Papers.
- Alessandra Casella & Thomas Palfrey & Raymond Riezman, 2005. "Minorities and Storable Votes," CESifo Working Paper Series 1583, CESifo Group Munich.
- Casella, Alessandra & Palfrey, Thomas & Riezman, Raymond, 2005. "Minorities and Storable Votes," Papers 09-19-2005b, Princeton University, Research Program in Political Economy.
- Alessandra Casella & Thomas Palfrey & Raymond Riezman, 2005. "Minorities and Storable Votes," Economics Working Papers 0059, Institute for Advanced Study, School of Social Science.
- Alessandra Casella & Thomas Palfrey & Raymond Riezman, 2006. "Minorities and Storable Votes," Levine's Bibliography 321307000000000199, UCLA Department of Economics.
- Alessandra Casella & Thomas Palfrey & Raymond Riezman, 2005. "Minorities and Storable Votes," NBER Working Papers 11674, National Bureau of Economic Research, Inc.
- Colin M. Campbell, 1999. "Large Electorates and Decisive Minorities," Journal of Political Economy, University of Chicago Press, vol. 107(6), pages 1199-1217, December.
- 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.
- Philipson, Tomas J & Snyder, James M, Jr, 1996. "Equilibrium and Efficiency in an Organized Vote Market," Public Choice, Springer, vol. 89(3-4), pages 245-265, December.
- Dino Gerardi & Leeat Yariv, 2003. "Putting Your Ballot Where Your Mouth Is: An Analysis of Collective Choice with Communication," UCLA Economics Working Papers 827, UCLA Department of Economics.
- Matthew O Jackson & Hugo F Sonnenschein, 2003.
"The Linking of Collective Decisions and Efficiency,"
NajEcon Working Paper Reviews
- Matthew O. Jackson & Hugo F. Sonnenschein, 2003. "The Linking of Collective Decisions and Efficiency," Microeconomics 0303007, EconWPA.
- Jackson, Matthew O. & Sonnenschein, Hugo F., 2003. "The Linking of Collective Decisions and Efficiency," Working Papers 1159, California Institute of Technology, Division of the Humanities and Social Sciences.
- John Ledyard, 1983.
"The Pure Theory of Large Two Candidate Elections,"
569, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- David Austen-Smith & Tim Feddersen, 2002. "The Inferiority of Deliberation Under Unanimity," Discussion Papers 1360, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Ponsati, Clara & Sakovics, Jozsef, 1996. "Multiperson Bargaining over Two Alternatives," Games and Economic Behavior, Elsevier, vol. 12(2), pages 226-244, February.
- Casella, Alessandra, 2002.
CEPR Discussion Papers
3508, C.E.P.R. Discussion Papers.
- Thomas R Palfrey & Howard Rosenthal, 2001.
"A Strategic Calculus of Voting,"
Levine's Working Paper Archive
563824000000000039, David K. Levine.
- Kahneman, Daniel & Schkade, David & Sunstein, Cass R, 1998. "Shared Outrage and Erratic Awards: The Psychology of Punitive Damages," Journal of Risk and Uncertainty, Springer, vol. 16(1), pages 49-86, April.
- Marco A. Haan & Peter Kooreman, 2003. "How majorities can lose the election Another voting paradox," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 20(3), pages 509-522, 06.
When requesting a correction, please mention this item's handle: RePEc:fem:femwpa:2004.83. 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.