Selecting Indexes of Electoral Proportionality: General Properties and Relationships

Selecting Indexes of Electoral Proportionality: General Properties and Relationships Measuring the proportionality of outcomes in termsof each party's vote and seatshares is an important task in electoral analysis.Various indexes have been designedthat provide a summary statistic of electoralproportionality/disproportionality. Claimsand counter-claims have been made regarding thestrengths and weaknesses of particularindexes. Important consequences follow from thismethodological pluralism. First, it isnot always clear which index has been employedwhen particular electoral outcomesare discussed. Second, recent additions to thelist of indexes have not been thoroughlyscrutinised and appraised. Third, the lack ofknowledge about the general relationshipbetween indexes means that observations might bedifferent had a different index beenused. This article seeks to identify and clarifythe particular properties of different indexesof proportionality. Relatively new, and largelyuntested, indexes of proportionality areexamined and some unusual and potentially damagingproperties are identified. We alsocompare different measures of disproportionality inan effort to specify some generalproperties of the inter-relationships between them.Understanding the particular patternsof electoral competition and vote distributionsthat affect the relationship between thesemeasures should enable users to anticipate theconsequences of preferring one index overothers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quality & Quantity Springer Journals

Selecting Indexes of Electoral Proportionality: General Properties and Relationships

Loading next page...
 
/lp/springer_journal/selecting-indexes-of-electoral-proportionality-general-properties-and-b3NM9iJEcj
Publisher
Kluwer Academic Publishers
Copyright
Copyright © 2004 by Kluwer Academic Publishers
Subject
Social Sciences; Methodology of the Social Sciences; Social Sciences, general
ISSN
0033-5177
eISSN
1573-7845
D.O.I.
10.1023/B:QUQU.0000013239.55304.98
Publisher site
See Article on Publisher Site

Abstract

Measuring the proportionality of outcomes in termsof each party's vote and seatshares is an important task in electoral analysis.Various indexes have been designedthat provide a summary statistic of electoralproportionality/disproportionality. Claimsand counter-claims have been made regarding thestrengths and weaknesses of particularindexes. Important consequences follow from thismethodological pluralism. First, it isnot always clear which index has been employedwhen particular electoral outcomesare discussed. Second, recent additions to thelist of indexes have not been thoroughlyscrutinised and appraised. Third, the lack ofknowledge about the general relationshipbetween indexes means that observations might bedifferent had a different index beenused. This article seeks to identify and clarifythe particular properties of different indexesof proportionality. Relatively new, and largelyuntested, indexes of proportionality areexamined and some unusual and potentially damagingproperties are identified. We alsocompare different measures of disproportionality inan effort to specify some generalproperties of the inter-relationships between them.Understanding the particular patternsof electoral competition and vote distributionsthat affect the relationship between thesemeasures should enable users to anticipate theconsequences of preferring one index overothers.

Journal

Quality & QuantitySpringer Journals

Published: Oct 18, 2004

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from
Google Scholar,
PubMed
Create lists to
organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off