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Aggregate Uncertainty in the Citizen-Candidate Model Yields Extremist Parties

  • Sandro Brusco


  • Jaideep Roy


We extend the 'citizen candidate' model of party formation to allow for aggregate uncertainty over the distribution of preferenecs in order to address free entry in some earlier research on electoral competition with aggregate uncertainty with a fixed number of parties. We discuss and characterize the equilibrium set in this framework and show that two-party equilibria have 'extremist' parties, i.e., the party winning under a left-wing (right-wing) distribution is to the left (right) of the median of that distribution.

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Paper provided by Centre for Economic Development and Institutions(CEDI), Brunel University in its series CEDI Discussion Paper Series with number 08-11.

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Length: 42 pages
Date of creation: Jun 2008
Date of revision:
Handle: RePEc:edb:cedidp:08-11
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  1. Martin J. Osborne & Al Slivinksi, 1995. "A Model of Political Competition with Citizen-Candidates," Department of Economics Working Papers 1995-01, McMaster University.
  2. Eguia, Jon X., 2005. "Citizen candidates under uncertainty," Working Papers 1233, California Institute of Technology, Division of the Humanities and Social Sciences.
  3. Palfrey, Thomas R, 1984. "Spatial Equilibrium with Entry," Review of Economic Studies, Wiley Blackwell, vol. 51(1), pages 139-56, January.
  4. Tim Besley & Stephen Coate, . "An Economic Model of Representative Democracy," Penn CARESS Working Papers ecf70d639d700dba5327ab0c8, Penn Economics Department.
  5. Grober, Jens & Palfrey, Thomas, . "A citizen candidate model with private information and unique equilibrium," Working Papers 1292, California Institute of Technology, Division of the Humanities and Social Sciences.
  6. Sandro Brusco & Jaideep Roy, 2007. "Aggregate Uncertainty in the Citizen Candidate Model Yields Extremist Parties," Department of Economics Working Papers 07-03, Stony Brook University, Department of Economics.
  7. Osborne Martin J., 1993. "Candidate Positioning and Entry in a Political Competition," Games and Economic Behavior, Elsevier, vol. 5(1), pages 133-151, January.
  8. Martin J. Osborne, 1995. "Spatial Models of Political Competition under Plurality Rule: A Survey of Some Explanations of the Number of Candidates and the Positions They Take," Canadian Journal of Economics, Canadian Economics Association, vol. 28(2), pages 261-301, May.
  9. Wittman, Donald, 1977. "Candidates with policy preferences: A dynamic model," Journal of Economic Theory, Elsevier, vol. 14(1), pages 180-189, February.
  10. John Duggan, 2003. "Electoral Competition with Privately Informed Candidates," Theory workshop papers 505798000000000029, UCLA Department of Economics.
  11. Arnaud Dellis & Mandar Oak, 2007. "Policy convergence under approval and plurality voting: the role of policy commitment," Social Choice and Welfare, Springer, vol. 29(2), pages 229-245, September.
  12. Stephen Wright & William Riker, 1989. "Plurality and runoff systems and numbers of candidates," Public Choice, Springer, vol. 60(2), pages 155-175, February.
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