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Predicting Party Sizes – The Logic of Simple Electoral Systems - Oxford Scholarship Online
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Predicting Party Sizes: The Logic of Simple Electoral Systems

Rein Taagepera


For a given electoral system, what average number and size distribution of parties can we expect? This book makes specific predictions that agree with world averages. The basic factors are assembly size and district magnitude (the number of seats allocated in the district). While previous models tell us only the direction in which to change the electoral system, the present ones also tell us by how much they must be changed so as to obtain the desired change in party system and cabinet duration. These are quantitatively predictive logical models. Combined with known particularities of a countr ... More

Keywords: electoral systems, party systems, number of parties, size distribution, cabinet duration, quantitatively predictive models, assembly size, district magnitude, institutional design, seat allocation

Bibliographic Information

Print publication date: 2007 Print ISBN-13: 9780199287741
Published to Oxford Scholarship Online: September 2007 DOI:10.1093/acprof:oso/9780199287741.001.0001


Affiliations are at time of print publication.

Rein Taagepera, author
Research Professor, University of California, Irvine, and University of Tartu
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