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On the expect of ideology in proportional representation systems


  • Francesco De Sinopoli
  • Giovanna Iannantuoni



In this paper we propose a model in which there are ideological and strategic voters who vote under poportional rule. We prove that the behavior of ideological voters matters, in that it a¤ects the outcome. We also show how a subset of strategic voters changes his voting be- havior to balance the ideological players? votes. However, they can only partially adjust. Strategic voters will vote accordingly to this cutpoint outcome: any strategic voter on its right votes for the right- most party and any strategic voter on its left votes for the leftmost party.

Suggested Citation

  • Francesco De Sinopoli & Giovanna Iannantuoni, 2009. "On the expect of ideology in proportional representation systems," Working Papers 160, University of Milano-Bicocca, Department of Economics, revised Apr 2009.
  • Handle: RePEc:mib:wpaper:160

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    References listed on IDEAS

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    18. repec:hrv:faseco:30747160 is not listed on IDEAS
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    More about this item


    Proportional Election; Strategic Voting; Ideological Voting.;

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior


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