On the Influence of Extreme Parties in Electoral Competition with Policy-Motivated Candidates
AbstractWe study and compare equilibrium platforms in models of one-dimensional electoral competition with two and four policy-motivated parties. We first analyse the plurality game, where the party that gets the most votes is elected and implements its proposed platform. Restrictions on the set of credible announcements are needed to get existence of equilibria. Comparing equilibria with two and four parties, we obtain that moderate parties react to the introduction of extreme parties by proposing the same or more extreme equilibrium platforms. We then study the proportional system, where the policy implemented is a weighted sum of the proposals, with the voting shares as weights. Here, the existence of extreme parties leads moderate ones to choose more centrist platforms.
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Bibliographic InfoPaper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 3885.
Date of creation: May 2003
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Other versions of this item:
- Georges Casamatta & Philippe Donder, 2005. "On the influence of extreme parties in electoral competition with policy-motivated candidates," Social Choice and Welfare, Springer, vol. 25(1), pages 1-29, October.
- Casamatta, Georges & De Donder, Philippe, 2003. "On the Influence of Extreme Parties in Electoral Competition with Policy-Motivated Candidates," IDEI Working Papers 161, Institut d'Économie Industrielle (IDEI), Toulouse.
- D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
This paper has been announced in the following NEP Reports:
- NEP-POL-2003-07-13 (Positive Political Economics)
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