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2006 | 42 | 5 | 883-912

Article title

Proporcionalita volebních formulí poměrných systémů

Authors

Content

Title variants

EN
THE PROPORTIONALITY OF ELECTORAL FORMULAS FOR SYSTEMS OF PROPORTIONAL REPRESENTATION

Languages of publication

CS

Abstracts

EN
The article presents the electoral formulae used in systems of proportional representation and it analyses the degree of proportionality in the division of mandates among political parties. Proportionality is a key factor in determining the political consequences of the formulae used and at the same time it is an indicator of the distortion of party representation. The research the article draws on was based on the Monte Carlo method. Eight indexes of proportionality were used to compare the qualities of electoral formulae. The results of their measurements differed significantly. A more detailed analysis is made of two main approaches to proportionality, represented by the two most important indexes: the Loosemore-Hanby index and the RR index. Using them electoral formulae are classified into two types of scales according to the degree of disproportionality (on a proportionality - disproportionality continuum) and the direction of disproportionality (‘to the advantage of small parties - to the advantage of large parties' continuum). These scales relativise some of the conclusions formulated to date in literature in this field. The article also suggests a scale of formulae constructed on the basis of a third, compromise approach, as the weighted average of the Loosemore-Hanby and the RR indexes.

Year

Volume

42

Issue

5

Pages

883-912

Physical description

Document type

ARTICLE

Contributors

author
  • T. Lebeda, Sociologický ústav AV CR, Jilská 1, 110 00 Praha 1, Czech Republic

References

Document Type

Publication order reference

Identifiers

CEJSH db identifier
07CZAAAA01884025

YADDA identifier

bwmeta1.element.568f368d-b6f3-3d51-8eee-21942f37d5a2
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