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 agreement to disagreement. Our model is distinguished by three features: private information regarding valuations, varying intensities in the preference for one outcome 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. Under general conditions, however, an aggressive minority equilibrium inevitably makes an appearance, provided that the group is large enough. The notable exception is the special case of unanimity rule: we show that aggressive minority equilibria may never exist irrespective of group size. Aggressive minority equilibria invariably display a ‘tyranny of the minority’: it is always true that the increased aggression of the minority more than compensates for smaller numbers, leading to the minority outcome being implemented with larger probability than the majority alternative. We fully characterize the asymptotic behavior of this model as group size becomes large, and show that all equilibria must converge to one of three possible limit outcomes.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
|Date of creation:||Jul 2004|
|Date of revision:|
|Contact details of provider:|| Postal: Centre for Economic Policy Research, 77 Bastwick Street, London EC1V 3PZ.|
Phone: 44 - 20 - 7183 8801
Fax: 44 - 20 - 7183 8820
|Order Information:|| Email: |
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.:
- 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.
- Thomas Palfrey & Howard Rosenthal, 1983. "A strategic calculus of voting," Public Choice, Springer, vol. 41(1), pages 7-53, January.
- Alessandra Casella & Thomas Palfrey & Raymond Riezman, 2006.
"Minorities and Storable Votes,"
321307000000000199, UCLA Department of Economics.
- 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.
- Casella, Alessandra & Palfrey, Thomas R. & Riezman, Raymond, 2006. "Minorities and storable votes," Working Papers 1261, California Institute of Technology, Division of the Humanities and Social Sciences.
- 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, 2005. "Minorities and Storable Votes," NBER Working Papers 11674, National Bureau of Economic Research, Inc.
- Alessandra Casella & Thomas Palfrey & Raymond Riezman, 2005. "Minorities and Storable Votes," CESifo Working Paper Series 1583, CESifo Group Munich.
- Matthew O Jackson & Hugo F Sonnenschein, 2003.
"The Linking of Collective Decisions and Efficiency,"
NajEcon Working Paper Reviews
- 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.
- Matthew O. Jackson & Hugo F. Sonnenschein, 2003. "The Linking of Collective Decisions and Efficiency," Microeconomics 0303007, EconWPA.
- 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.
- 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.
- Colin M. Campbell, 1999. "Large Electorates and Decisive Minorities," Journal of Political Economy, University of Chicago Press, vol. 107(6), pages 1199-1217, December.
- Casella, Alessandra, 2005.
Games and Economic Behavior,
Elsevier, vol. 51(2), pages 391-419, May.
- 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.
- John Ledyard, 1984.
"The pure theory of large two-candidate elections,"
Springer, vol. 44(1), pages 7-41, January.
- Ponsati, Clara & Sakovics, Jozsef, 1996. "Multiperson Bargaining over Two Alternatives," Games and Economic Behavior, Elsevier, vol. 12(2), pages 226-244, February.
- Philipson, Tomas J & Snyder, James M, Jr, 1996. "Equilibrium and Efficiency in an Organized Vote Market," Public Choice, Springer, vol. 89(3-4), pages 245-65, 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.
When requesting a correction, please mention this item's handle: RePEc:cpr:ceprdp:4480. 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: ()
If references are entirely missing, you can add them using this form.