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Majority-efficiency and Competition-efficiency in a Binary Policy Model

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  • Stefan Krasa
  • Mattias Polborn

Abstract

We introduce a general framework in which politicians choose a (possibly infinite) sequence of binary policies. The two competing candidates are exogenously committed to particular actions on a subset of these issues, while they can choose any policy for the remaining issues to maximize their winning probability. Citizens have general preferences over policies, and the distribution of preferences may be uncertain. We show that a special case of the model, the weighted-issue model, provides a tractable multidimensional model of candidate competition that can generate (i) policy divergence in pure and mixed strategies, (ii) adoption of minority positions, and (iii) inefficient outcomes.

Suggested Citation

  • Stefan Krasa & Mattias Polborn, 2007. "Majority-efficiency and Competition-efficiency in a Binary Policy Model," CESifo Working Paper Series 1958, CESifo Group Munich.
  • Handle: RePEc:ces:ceswps:_1958
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    File URL: http://www.cesifo-group.de/DocDL/cesifo1_wp1958.pdf
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    References listed on IDEAS

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    1. 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.
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    6. Caplin, Andrew S & Nalebuff, Barry J, 1988. "On 64%-Majority Rule," Econometrica, Econometric Society, vol. 56(4), pages 787-814, July.
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    1. repec:cup:apsrev:v:104:y:2010:i:04:p:745-765_00 is not listed on IDEAS
    2. Krasa, Stefan & Polborn, Mattias, 2010. "Competition between Specialized Candidates," American Political Science Review, Cambridge University Press, vol. 104(04), pages 745-765, November.

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