scholarly journals What Makes Party Systems Different? A Principal Component Analysis of 17 Advanced Democracies 1970–2013

2021 ◽  
pp. 1-19
Author(s):  
Zsuzsanna B. Magyar
Keyword(s):  
Principal Component Analysis ◽  
Party System ◽  
Principal Component ◽  
Party Systems ◽  
System Size ◽  
Component Analysis ◽  
Science Literature ◽  
Effective Number Of Parties ◽  
Number Of Parties ◽  
Advanced Democracies

Abstract Party systems, that is, the number and the size of all the parties within a country, can vary greatly across countries. I conduct a principal component analysis on a party seat share dataset of 17 advanced democracies from 1970 to 2013 to reduce the dimensionality of the data. I find that the most important dimensions that differentiate party systems are: “the size of the biggest two parties” and the level of “competition between the two biggest parties.” I use the results to compare the changes in electoral and legislative party systems. I also juxtapose the results to previous party system typologies and party system size measures. I find that typologies sort countries into categories based on variation along both dimensions. On the other hand, most of the current political science literature use measures (e.g., the effective number of parties) that are correlated with the first dimension. I suggest that instead of these, indices that measure the opposition structure and competition could be used to explore problems pertaining to the competitiveness of the party systems.

Federal and Subnational Elections in Russia: Coherence and Divergence in Electoral Outcomes

2020 ◽  
Vol 5 (3) ◽  
pp. 329-353
Author(s):  
Rostislav Turovsky ◽  
Marina Sukhova
Keyword(s):  
Party System ◽  
Party Systems ◽  
Strong Connection ◽  
Regional Parties ◽  
Electoral Outcomes ◽  
Electoral Authoritarianism ◽  
Subnational Elections ◽  
Effective Number Of Parties ◽  
Number Of Parties ◽  
Regional Elections

Abstract This article examines the differences between Russian voting at federal elections and regional legislature elections, both combined and conducted independently. The authors analyse these differences, their character and their dynamics as an important characteristic of the nationalisation of the party system. They also test hypotheses about a higher level of oppositional voting and competitiveness in subnational elections, in accordance with the theory of second-order elections, as well as the strategic nature of voting at federal elections, by contrast with expressive voting during subnational campaigns. The empirical study is based on calculating the differences in votes for leading Russian parties at subnational elections and at federal elections (simultaneous, preceding and following) from 2003, when mandatory voting on party lists was widespread among the regions, to 2019. The level of competitiveness is measured in a similar way, by calculating the effective number of parties. The study indicates a low level of autonomy of regional party systems, in many ways caused by the fact that the law made it impossible to create regional parties, and then also by the 2005 ban on creation of regional blocs. The strong connection between federal and regional elections in Russia clearly underlines the fluid and asynchronic nature of its electoral dynamics, where subnational elections typically predetermine the results of the following federal campaigns. At the same time, the formal success of the nationalisation of the party system, achieved by increasing the homogeneity of voting at the 2016 and 2018 federal elections, is not reflected by the opposing process of desynchronisation between federal and regional elections after Putin’s third-term election. There is also a clear rise in the scale of the differences between the two. At the same time, the study demonstrates the potential presence in Russia of features common to subnational elections in many countries: their greater support for the opposition and presence of affective voting. However, there is a clear exception to this trend during the period of maximum mobilisation of the loyal electorate at the subnational elections immediately following the accession of Crimea in 2014–2015, and such tendencies are generally restrained by the conditions of electoral authoritarianism.

A Statistical Model for Party-Systems Analysis

2012 ◽  
Vol 20 (2) ◽  
pp. 235-247 ◽  
Author(s):  
Arturas Rozenas ◽  
R. Michael Alvarez
Keyword(s):  
Party System ◽  
Party Systems ◽  
Data Sets ◽  
Novel Approach ◽  
Proposed Model ◽  
Effective Number Of Parties ◽  
Index Value ◽  
Party Vote Shares ◽  
Number Of Parties ◽  
Index Measure

Empirical researchers studying party systems often struggle with the question of how to count parties. Indexes of party system fragmentation used to address this problem (e.g., the effective number of parties) have a fundamental shortcoming: since the same index value may represent very different party systems, they are impossible to interpret and may lead to erroneous inference. We offer a novel approach to this problem: instead of focusing on index measures, we develop a model that predicts the entire distribution of party vote-shares and, thus, does not require any index measure. First, a model of party counts predicts the number of parties. Second, a set of multivariate t models predicts party vote-shares. Compared to the standard index-based approach, our approach helps to avoid inferential errors and, in addition, yields a much richer set of insights into the variation of party systems. For illustration, we apply the model on two data sets. Our analyses call into question the conclusions one would arrive at by the index-based approach. Software is provided to implement the proposed model.

District Magnitude, Economic Performance, and Party-System Fragmentation in Five Latin American Countries

1997 ◽  
Vol 30 (2) ◽  
pp. 156-185 ◽  
Author(s):  
MICHAEL COPPEDGE
Keyword(s):  
Latin American ◽  
Party System ◽  
Initial Level ◽  
Party Systems ◽  
Simultaneous Equations ◽  
District Magnitude ◽  
Effective Number Of Parties ◽  
Number Of Parties ◽  
Latin American Countries ◽  
Country Specific

This article makes a fresh start in the attempt to explain the number of parties in party systems. It develops a simultaneous equations model to differentiate between the psychological and mechanical effects of district magnitude on party-system fragmentation. Both effects are statistically significant and approximately equal. However, neither effect is very large in comparison to underlying patterns of politicization, which are argued to be reflections of the number of political cleavages in society. These cleavages predispose each party system to converge toward a country-specific effective number of parties within 5 elections, regardless of the initial level of fragmentation, barring outside disturbances. Major devaluations may act as such disturbances, but the evidence so far is inconclusive. The analysis is based on new data from 62 elections in Argentina, Bolivia, Colombia, Peru, and Venezuela, supplemented by 30+ additional elections in Brazil, Chile, Costa Rica, Ecuador, Mexico, and Uruguay for the exploration of economic impacts.

scholarly journals Introducing new multilevel datasets: Party systems at the district and national levels

2018 ◽  
Vol 5 (4) ◽  
pp. 205316801881350
Author(s):  
Cory L. Struthers ◽  
Yuhui Li ◽  
Matthew S. Shugart
Keyword(s):  
Party System ◽  
National Level ◽  
Party Systems ◽  
District Level ◽  
Party Competition ◽  
List Type ◽  
National Party ◽  
Presidential Candidates ◽  
Effective Number Of Parties ◽  
Number Of Parties

For decades, datasets on national-level elections have contributed to knowledge on what shapes national party systems. More recently, datasets on elections at the district level have advanced research on subnational party competition. Yet, to our knowledge, no publicly accessible dataset with observations of the party system at both national and district levels exists, limiting the ease with which cross-level comparisons can be made. To fill this gap, we release two corresponding datasets, the National Level Party Systems dataset and the District Level Party Systems dataset, where the unit of analysis is the party system within either the national or district jurisdiction. More than 50 elections in the two datasets are overlapping, meaning they include observations for a single election at both the district and national levels. In addition to conventional measures such as the effective number of parties, we also include underutilized variables, such as the size of the largest party, list type, and the vote shares for presidential candidates in corresponding elections.

scholarly journals Adapt or Perish? How Parties Respond to Party System Saturation in 21 Western Democracies, 1945–2011

2019 ◽  
pp. 1-23 ◽  
Author(s):  
Marc van de Wardt ◽  
Arjen van Witteloostuijn
Keyword(s):  
Time Series ◽  
Party System ◽  
System Change ◽  
Party Systems ◽  
Limited Capacity ◽  
Effective Number ◽  
Effective Number Of Parties ◽  
Time Series Analyses ◽  
Number Of Parties ◽  
Western Democracies

Abstract This study examines whether (and how) parties adapt to party system saturation (PSS). A party system is oversaturated when a higher effective number of parties contests elections than predicted. Previous research has shown that parties are more likely to exit when party systems are oversaturated. This article examines whether parties will adapt by increasing the nicheness of their policy platform, by forming electoral alliances or by merging. Based on time-series analyses of 522 parties contesting 357 elections in twenty-one established Western democracies between 1945 and 2011, the study finds that parties are more likely to enter – and less likely to leave – electoral alliances if PSS increases. Additionally, a small share of older parties will merge. The results highlight parties’ limited capacity to adapt to their environments, which has important implications for the literature on party (system) change and models of electoral competition.

Clientelism from the Client’s Perspective: A Meta-Analysis of Ethnographic Literature

2020 ◽  
pp. 1-17
Author(s):  
Miquel Pellicer ◽  
Eva Wegner ◽  
Markus Bayer ◽  
Christian Tischmeyer
Keyword(s):  
Principal Component Analysis ◽  
Cluster Analysis ◽  
Meta Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Two Dimensions ◽  
Science Literature ◽  
Vote Buying ◽  
Client Perspective ◽  
Trade Offs

Mainstream political science literature on clientelism tends to focus on its supply side and on vote-buying, whereas ethnographic work often emphasizes client agency and incentives and paints a more diverse image of clientelism. We bridge the gap between these literatures by conducting a meta-analysis of ethnographic literature on clientelism from the client perspective. We code characteristics of clientelistic exchanges described in this work. We use cluster analysis and principal component analysis to systematize these data. Cluster analysis groups exchanges into three core subtypes of clientelism (“vote-buying”, “relational”, and “collective”); principal component analysis delivers two fundamental dimensions of clientelism: equal-unequal and individual-universal. We show that the two dimensions are associated with different aspects of client welfare and trade-offs from the client perspective. Our results reaffirm and reconcile existing deductive typologies of clientelism and can serve as a basis for a structured study of the demand side of clientelism.

A German version of the Intermittent Claudication Questionnaire (ICQ): cultural adaptation and validation

VASA ◽  
2012 ◽  
Vol 41 (5) ◽  
pp. 333-342 ◽  
Author(s):  
Kirchberger ◽  
Finger ◽  
Müller-Bühl
Keyword(s):  
Principal Component Analysis ◽  
Intermittent Claudication ◽  
Completion Time ◽  
Short Form ◽  
Principal Component ◽  
Component Analysis ◽  
German Version ◽  
Average Completion Time ◽  
Sf 36 ◽  
Related Quality

Background: The Intermittent Claudication Questionnaire (ICQ) is a short questionnaire for the assessment of health-related quality of life (HRQOL) in patients with intermittent claudication (IC). The objective of this study was to translate the ICQ into German and to investigate the psychometric properties of the German ICQ version in patients with IC. Patients and methods: The original English version was translated using a forward-backward method. The resulting German version was reviewed by the author of the original version and an experienced clinician. Finally, it was tested for clarity with 5 German patients with IC. A sample of 81 patients were administered the German ICQ. The sample consisted of 58.0 % male patients with a median age of 71 years and a median IC duration of 36 months. Test of feasibility included completeness of questionnaires, completion time, and ratings of clarity, length and relevance. Reliability was assessed through a retest in 13 patients at 14 days, and analysis of Cronbach’s alpha for internal consistency. Construct validity was investigated using principal component analysis. Concurrent validity was assessed by correlating the ICQ scores with the Short Form 36 Health Survey (SF-36) as well as clinical measures. Results: The ICQ was completely filled in by 73 subjects (90.1 %) with an average completion time of 6.3 minutes. Cronbach’s alpha coefficient reached 0.75. Intra-class correlation for test-retest reliability was r = 0.88. Principal component analysis resulted in a 3 factor solution. The first factor explained 51.5 of the total variation and all items had loadings of at least 0.65 on it. The ICQ was significantly associated with the SF-36 and treadmill-walking distances whereas no association was found for resting ABPI. Conclusions: The German version of the ICQ demonstrated good feasibility, satisfactory reliability and good validity. Responsiveness should be investigated in further validation studies.

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