Competition among parties and power: An empirical analysis
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.
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- 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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