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Competition among parties and power: An empirical analysis

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  • Migheli, Matteo

    ()

  • Ortona, Guido

    ()

  • Ponzano, Ferruccio

    ()

Abstract

According to commonsense wisdom, under proportionality a small centrist party enjoys an excess of power with reference to its share of seats (or votes) due to the possibility of blackmailing the larger ones. This hypothesis has been challenged on a theoretical ground, with some empirical support. In this paper we use simulation to test its validity. Our results strongly provide evidence that the hypothesis is actually wrong. What occurs is a transfer of power from the peryphery of the political spectrum towards the center, buth the major gainers are the large centrist parties and not the small ones.

Suggested Citation

  • Migheli, Matteo & Ortona, Guido & Ponzano, Ferruccio, 2012. "Competition among parties and power: An empirical analysis," POLIS Working Papers 167, Institute of Public Policy and Public Choice - POLIS.
  • Handle: RePEc:uca:ucapdv:167
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    File URL: http://polis.unipmn.it/pubbl/RePEc/uca/ucapdv/ortona197.pdf
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    1. Migheli, Matteo & Ortona, Guido, 2009. "Majority, proportionality, governability and factions," POLIS Working Papers 122, Institute of Public Policy and Public Choice - POLIS.
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    Cited by:

    1. Matteo Migheli, 2016. "Measuring Representativeness in Different Electoral Systems, Using Italian and Dutch Data," Group Decision and Negotiation, Springer, vol. 25(4), pages 723-748, July.

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