“Effective” Number of Parties

@article{Laakso1979EffectiveNO,
  title={“Effective” Number of Parties},
  author={Markku Laakso and Rein Taagepera},
  journal={Comparative Political Studies},
  year={1979},
  volume={12},
  pages={27 - 3}
}
The qEffectiveq Number of Parties: qA Measure with Application to West Europeq Laakso, Markku;Taagepera, Rein Comparative Political Studies; Apr 1, 1979; 12, 1; Proouest pg. 3 “EFFECTIVE” NUMBER OF PARTIES A Measure with Application to West Europe MARKKU LAAKSO University of Helsinki REIN TAAGEPERA University of California, Irvine I s a large number of parties bound to destabilize a political system (Duverger, 1954) or is it not (e.g., Lijphart, 1968; Nilson, 1974)? Before this question can be… 
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