Advanced Search
MyIDEAS: Login to save this paper or follow this series

Group Decision-Making in the Shadow of Disagreement

Contents:

Author Info

  • Debraj Ray

    (Department of Economics, New York University and Instituto de Análisis Económico (CSIC))

  • Kfir Eliaz

    (Department of Economics, New York University)

  • Ronny Razin

    (Department of Economics, New York University)

Abstract

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.

Download Info

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.
File URL: http://www.feem.it/userfiles/attach/Publication/NDL2004/NDL2004-083.pdf
Download Restriction: no

Bibliographic Info

Paper provided by Fondazione Eni Enrico Mattei in its series Working Papers with number 2004.83.

as in new window
Length:
Date of creation: May 2004
Date of revision:
Handle: RePEc:fem:femwpa:2004.83

Contact details of provider:
Postal: Corso Magenta, 63 - 20123 Milan
Phone: 0039-2-52036934
Fax: 0039-2-52036946
Email:
Web page: http://www.feem.it/
More information through EDIRC

Related research

Keywords: Collective decision-making; Groups; Disagreements; Decision rules;

Other versions of this item:

Find related papers by JEL classification:

This paper has been announced in the following NEP Reports:

References

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.:
as in new window
  1. Alessandra Casella, 2002. "Storable Votes," NBER Working Papers 9189, National Bureau of Economic Research, Inc.
  2. 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.
  3. 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.
  4. Ponsati, Clara & Sakovics, Jozsef, 1996. "Multiperson Bargaining over Two Alternatives," Games and Economic Behavior, Elsevier, vol. 12(2), pages 226-244, February.
  5. 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.
Full references (including those not matched with items on IDEAS)

Citations

Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
as in new window

Cited by:
  1. Alistair Wilson, 2012. "Costly Communication in Groups: Theory and an Experiment," Working Papers 499, University of Pittsburgh, Department of Economics, revised Feb 2014.
  2. Hitoshi Matsushima & Koichi Miyazaki & Nobuyuki Yagi, 2006. "Role of Linking Mechanisms in Multitask Agency with Hidden Information," CIRJE F-Series CIRJE-F-401, CIRJE, Faculty of Economics, University of Tokyo.
  3. Mehmet Ekmekci, 2008. "Manipulation through political endorsements," Discussion Papers 1509, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  4. Rafael Hortala-Vallve, 2010. "Inefficiencies on linking decisions," Social Choice and Welfare, Springer, vol. 34(3), pages 471-486, March.

Lists

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

Statistics

Access and download statistics

Corrections

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 you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.