Measuring Closeness in Proportional Representation Systems

IF 4.7 2区社会学 Q1 POLITICAL SCIENCE

Political Analysis Pub Date : 2023-07-24 DOI:10.1017/pan.2023.22

Simon Luechinger, Mark Schelker, L. Schmid

引用次数: 0

Abstract

We provide closed-form solutions for measuring electoral closeness of candidates in proportional representation (PR) systems. In contrast to plurality systems, closeness in PR systems cannot be directly inferred from votes. Our measure captures electoral closeness for both open- and closed-list systems and for both main families of seat allocation mechanisms. This unified measure quantifies the vote surplus (shortfall) for elected (nonelected) candidates. It can serve as an assignment variable in regression discontinuity designs or as a measure of electoral competitiveness. For illustration, we estimate the incumbency advantage for the parliaments in Switzerland, Honduras, and Norway.

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比例表示系统中的贴近度测量

我们提供了在比例代表制（PR）中衡量候选人选举接近度的封闭式解决方案。与多人制相比，公关系统中的亲密度不能直接从选票中推断出来。我们的衡量标准反映了公开和封闭名单制度以及席位分配机制的两个主要家族的选举接近程度。这一统一措施量化了当选（非当选）候选人的选票盈余（短缺）。它可以作为回归不连续性设计中的分配变量，也可以作为选举竞争力的衡量标准。例如，我们估计了瑞士、洪都拉斯和挪威议会的在职优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Political Analysis POLITICAL SCIENCE-

CiteScore

8.80

自引率

3.70%

发文量

期刊介绍： Political Analysis chronicles these exciting developments by publishing the most sophisticated scholarship in the field. It is the place to learn new methods, to find some of the best empirical scholarship, and to publish your best research.