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Electoral Rule Disproportionality and Platform Polarization

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Electoral Rule Disproportionality and Platform Polarization. / Matakos, Konstantinos; Troumpounis, Orestis; Xefteris, Dimitrios.

In: AMERICAN JOURNAL OF POLITICAL SCIENCE, Vol. 60, No. 4, 10.2016, p. 1026–1043 .

Research output: Contribution to journalArticle

Harvard

Matakos, K, Troumpounis, O & Xefteris, D 2016, 'Electoral Rule Disproportionality and Platform Polarization', AMERICAN JOURNAL OF POLITICAL SCIENCE, vol. 60, no. 4, pp. 1026–1043 . https://doi.org/10.1111/ajps.12235

APA

Matakos, K., Troumpounis, O., & Xefteris, D. (2016). Electoral Rule Disproportionality and Platform Polarization. AMERICAN JOURNAL OF POLITICAL SCIENCE, 60(4), 1026–1043 . https://doi.org/10.1111/ajps.12235

Vancouver

Matakos K, Troumpounis O, Xefteris D. Electoral Rule Disproportionality and Platform Polarization. AMERICAN JOURNAL OF POLITICAL SCIENCE. 2016 Oct;60(4):1026–1043 . https://doi.org/10.1111/ajps.12235

Author

Matakos, Konstantinos ; Troumpounis, Orestis ; Xefteris, Dimitrios. / Electoral Rule Disproportionality and Platform Polarization. In: AMERICAN JOURNAL OF POLITICAL SCIENCE. 2016 ; Vol. 60, No. 4. pp. 1026–1043 .

Bibtex Download

@article{9aaa06e9351f453e8981dce1bc3e1658,
title = "Electoral Rule Disproportionality and Platform Polarization",
abstract = "Despite common perception, existing theoretical literature lacks a complete formal argument regarding the relationship between the electoral rule disproportionality and platform polarization. In this article, we build a model that incorporates the disproportionality of the electoral system in a standard Downsian electoral competition setup with mainly, but not necessarily purely, policy-motivated parties. We first show that in equilibrium, platform polarization is decreasing in the level of the electoral rule disproportionality. We then argue that the number of parties has a positive effect on platform polarization when polarization is measured by the distance between the two most distant platforms. This effect does not hold when polarization is measured by the widely used Dalton index. Constructing a data set covering more than 300 elections, our main theoretical findings are empirically supported, pointing toward the electoral rule disproportionality as a major determinant of polarization.",
author = "Konstantinos Matakos and Orestis Troumpounis and Dimitrios Xefteris",
year = "2016",
month = oct,
doi = "10.1111/ajps.12235",
language = "English",
volume = "60",
pages = "1026–1043 ",
journal = "AMERICAN JOURNAL OF POLITICAL SCIENCE",
issn = "0092-5853",
publisher = "Cambridge University Press",
number = "4",

}

RIS (suitable for import to EndNote) Download

TY - JOUR

T1 - Electoral Rule Disproportionality and Platform Polarization

AU - Matakos, Konstantinos

AU - Troumpounis, Orestis

AU - Xefteris, Dimitrios

PY - 2016/10

Y1 - 2016/10

N2 - Despite common perception, existing theoretical literature lacks a complete formal argument regarding the relationship between the electoral rule disproportionality and platform polarization. In this article, we build a model that incorporates the disproportionality of the electoral system in a standard Downsian electoral competition setup with mainly, but not necessarily purely, policy-motivated parties. We first show that in equilibrium, platform polarization is decreasing in the level of the electoral rule disproportionality. We then argue that the number of parties has a positive effect on platform polarization when polarization is measured by the distance between the two most distant platforms. This effect does not hold when polarization is measured by the widely used Dalton index. Constructing a data set covering more than 300 elections, our main theoretical findings are empirically supported, pointing toward the electoral rule disproportionality as a major determinant of polarization.

AB - Despite common perception, existing theoretical literature lacks a complete formal argument regarding the relationship between the electoral rule disproportionality and platform polarization. In this article, we build a model that incorporates the disproportionality of the electoral system in a standard Downsian electoral competition setup with mainly, but not necessarily purely, policy-motivated parties. We first show that in equilibrium, platform polarization is decreasing in the level of the electoral rule disproportionality. We then argue that the number of parties has a positive effect on platform polarization when polarization is measured by the distance between the two most distant platforms. This effect does not hold when polarization is measured by the widely used Dalton index. Constructing a data set covering more than 300 elections, our main theoretical findings are empirically supported, pointing toward the electoral rule disproportionality as a major determinant of polarization.

U2 - 10.1111/ajps.12235

DO - 10.1111/ajps.12235

M3 - Article

VL - 60

SP - 1026

EP - 1043

JO - AMERICAN JOURNAL OF POLITICAL SCIENCE

JF - AMERICAN JOURNAL OF POLITICAL SCIENCE

SN - 0092-5853

IS - 4

ER -

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