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The Number of Seat‐Winning Parties and the Largest Seat Share

Rein Taagepera

in Predicting Party Sizes: The Logic of Simple Electoral Systems

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199287741
eISBN:
9780191713408
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199287741.003.0008
Subject:
Political Science, Democratization

The quantity to watch is the ‘seat product’ — the product of the assembly size and district magnitude. The number of parties represented in the assembly is approximately the fourth root of the seat ... More


Seat Shares of All Parties and the Effective Number of Parties

Rein Taagepera

in Predicting Party Sizes: The Logic of Simple Electoral Systems

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199287741
eISBN:
9780191713408
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199287741.003.0009
Subject:
Political Science, Democratization

As with Chapter 8, the ‘seat product’ is the important quantity to watch. The effective number of parties represented in the assembly is approximately the sixth root of the seat product. The average ... More


The Consequences of Russia's Mixed‐Member Electoral System

Robert G. Moser

in Mixed-Member Electoral Systems: The Best of Both Worlds?

Published in print:
2003
Published Online:
November 2003
ISBN:
9780199257683
eISBN:
9780191600241
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/019925768X.003.0023
Subject:
Political Science, Comparative Politics

The Russian mixed‐member majoritarian (MMM) system introduced by executive decree in 1993 and passed into law in 1995 did not produce the outcomes expected by its designers, nor have electoral system ... More


Openness to Small Parties: The Micro‐Mega Rule and the Seat Product

Rein Taagepera

in Predicting Party Sizes: The Logic of Simple Electoral Systems

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199287741
eISBN:
9780191713408
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199287741.003.0006
Subject:
Political Science, Democratization

The micro-mega rule says that for representation of small parties, it helps to have large assembly sizes, large district magnitudes, and large quotas or large gaps between divisors in seat allocation ... More


The Institutional Impact on Votes and Deviation from PR

Rein Taagepera

in Predicting Party Sizes: The Logic of Simple Electoral Systems

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199287741
eISBN:
9780191713408
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199287741.003.0014
Subject:
Political Science, Democratization

Using nothing but the product of assembly size and district magnitude, a quantitatively predictive logical model allows us to estimate the average effective number of parties based on votes. Average ... More


Predicting Party Sizes: The Logic of Simple Electoral Systems

Rein Taagepera

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199287741
eISBN:
9780191713408
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199287741.001.0001
Subject:
Political Science, Democratization

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 ... More


The Mean Duration of Cabinets

Rein Taagepera

in Predicting Party Sizes: The Logic of Simple Electoral Systems

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199287741
eISBN:
9780191713408
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199287741.003.0010
Subject:
Political Science, Democratization

Again the quantity to watch is the ‘seat product’. The inverse square law of cabinet durations says that the mean cabinet duration in a country is approximately forty-two years divided by the square ... More


How to Simplify Complex Electoral Systems

Rein Taagepera

in Predicting Party Sizes: The Logic of Simple Electoral Systems

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199287741
eISBN:
9780191713408
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199287741.003.0011
Subject:
Political Science, Democratization

Resistance to simplifying a complex electoral system is at its least when the existing number and size of parties are not altered. The existing effective number of parties is most likely to be ... More


Electoral Rules, the Number of Parties, and Niche Party Success

Lawrence Ezrow

in Linking Citizens and Parties: How Electoral Systems Matter for Political Representation

Published in print:
2010
Published Online:
September 2010
ISBN:
9780199572526
eISBN:
9780191722752
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199572526.003.0004
Subject:
Political Science, Comparative Politics, European Union

This chapter reports an association between the electoral rules that have been adopted in a political system and niche party electoral competitiveness. The competitiveness of niche parties is defined ... More


How Electoral Systems Matter

Rein Taagepera

in Predicting Party Sizes: The Logic of Simple Electoral Systems

Published in print:
2007
Published Online:
September 2007
ISBN:
9780199287741
eISBN:
9780191713408
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199287741.003.0001
Subject:
Political Science, Democratization

An electoral system helps determine the number and size distribution of parties in a country, as well as cabinet duration. Electoral systems are expressed in electoral laws. Their impact depends on ... More


Example of Interlocking Models: Party Sizes and Cabinet Duration

Rein Taagepera

in Making Social Sciences More Scientific: The Need for Predictive Models

Published in print:
2008
Published Online:
September 2008
ISBN:
9780199534661
eISBN:
9780191715921
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199534661.003.0010
Subject:
Political Science, Comparative Politics, Political Economy

Interlocking networks of equations, based on logical models, are possible in social sciences. Partial evidence is offered by a sequence of models that ties mean duration of governmental cabinets ... More


All Indices Are Not Created Equal

Rein Taagepera

in Making Social Sciences More Scientific: The Need for Predictive Models

Published in print:
2008
Published Online:
September 2008
ISBN:
9780199534661
eISBN:
9780191715921
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199534661.003.0013
Subject:
Political Science, Comparative Politics, Political Economy

Models are tested with data, but also data are tested by agreement with conceptual models. When competing indices exist to measure the same phenomena, one should use the ones that agree with ... More


Party leaders in different contexts: the role of political institutions

Amanda Bittner

in Platform or Personality?: The Role of Party Leaders in Elections

Published in print:
2011
Published Online:
May 2011
ISBN:
9780199595365
eISBN:
9780191725593
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199595365.003.0007
Subject:
Political Science, Comparative Politics

This chapter assesses the extent to which political institutions may mediate the impact of leaders' traits. There is variation in political context across the elections included in this study, ... More


Why was Runoff Superior? Theory and Cross-National Evidence

Cynthia McClintock

in Electoral Rules and Democracy in Latin America

Published in print:
2018
Published Online:
August 2018
ISBN:
9780190879754
eISBN:
9780190879792
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780190879754.003.0003
Subject:
Political Science, Comparative Politics, Democratization

This chapter describes plurality advocates’ arguments against runoff and reports the cross-national evidence for and against them. Plurality advocates’ concerns about outsiders and voter fatigue were ... More


Introduction: Normalization of the ‘Post-Congress Polity’

Suhas Palshikar, K.C. Suri, and Yogendra Yadav

in Party Competition in Indian States: Electoral Politics in Post-Congress Polity

Published in print:
2014
Published Online:
June 2014
ISBN:
9780198099178
eISBN:
9780199082988
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198099178.003.0001
Subject:
Political Science, Indian Politics

This book deals with the different aspects of electoral politics in Indian states during the period 2008-2012 and the nature of the relationship between between electoral politics in the states and ... More


The Cartel Party

Richard S. Katz and Peter Mair

in Democracy and the Cartelization of Political Parties

Published in print:
2018
Published Online:
July 2018
ISBN:
9780199586011
eISBN:
9780191866043
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199586011.003.0006
Subject:
Political Science, Comparative Politics, Democratization

In terms of an analogy to economic markets, the political market for parties has nearly always been an oligopoly. In recent decades, that oligopoly has transformed into a cartel, in which the parties ... More


Party Competition in Indian States: Electoral Politics in Post-Congress Polity

Suhas Palshikar, K C Suri, and Yogendra Yadav (eds)

Published in print:
2014
Published Online:
June 2014
ISBN:
9780198099178
eISBN:
9780199082988
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198099178.001.0001
Subject:
Political Science, Indian Politics

The political storm that swept Indian politics in the 1990s consolidated the post-Congress polity, a condition in which the Indian National Congress was no longer in a position to set the national ... More


The Political Impact of Migrants in Colombia: The Quantitative Evidence

Luis F. Jiménez

in Migrants and Political Change in Latin America

Published in print:
2018
Published Online:
January 2019
ISBN:
9781683400370
eISBN:
9781683400646
Item type:
chapter
Publisher:
University Press of Florida
DOI:
10.5744/florida/9781683400370.003.0005
Subject:
Society and Culture, Latin American Studies

Chapter 5 uses the theory laid in chapter 2 to test the Colombian case. It begins by documenting the particular nature of Colombian migration, specifically how it differs from both Mexican and ... More


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