Bivariate and Multivariate Analyses

Arend Lijphart

in Electoral Systems and Party Systems

Published in print January 1994 | ISBN: 9780198273479
Published online October 2011 | e-ISBN: 9780191684050 | DOI:

Series: Comparative European Politics

Bivariate and Multivariate Analyses

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This chapter discusses the result of the bivariate and multivariate analyses of the seventy electoral systems used in major democratic parliamentary elections in different countries. It explains the bivariate relationships between the three dimensions of the electoral system and the disproportionality and party system characteristics. The analyses reveal that disproportionality does not necessarily lead to fewer elective parties in the proportional representation (PR) system and the differences in effective thresholds are considerably more consequential than the differences in electoral formula. The chapter also elaborates on the result of the regression analyses on the influence of the effective threshold and assembly size on disproportionality and party system variables.

Keywords: electoral system; bivariate analysis; multivariate analysis; proportional representation; effective threshold; regression analysis; disproportionality; assembly size; party system

Chapter.  6378 words. 

Subjects: Comparative Politics

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