Cross-national measurement of polarization in political discourse: Analyzing floor debate in the U.S. the Japanese legislatures

Takuto Sakamoto, Hiroki Takikawa

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Political polarization in public space can seriously hamper the function and the integrity of contemporary democratic societies. In this paper, we propose a novel measure of such polarization, which, by way of simple topic modelling, quantifies differences in collective articulation of public agendas among relevant political actors. Unlike most other polarization measures, our measure allows cross-national comparison. Analyzing a large amount of speech records of legislative debate in the United States Congress and the Japanese Diet over a long period of time, we have reached two intriguing findings. First, on average, Japanese political actors are far more polarized in their issue articulation than their counterparts in the U.S., which is somewhat surprising given the recent notion of U.S. politics as highly polarized. Second, the polarization in each country shows its own temporal dynamics in response to a different set of factors. In Japan, structural factors such as the roles of the ruling party and the opposition often dominate such dynamics, whereas the U.S. legislature suffers from persistent ideological differences over particular issues between major political parties. The analysis confirms a strong influence of institutional differences on legislative debate in parliamentary democracies.

本文言語English
ホスト出版物のタイトルProceedings - 2017 IEEE International Conference on Big Data, Big Data 2017
編集者Jian-Yun Nie, Zoran Obradovic, Toyotaro Suzumura, Rumi Ghosh, Raghunath Nambiar, Chonggang Wang, Hui Zang, Ricardo Baeza-Yates, Ricardo Baeza-Yates, Xiaohua Hu, Jeremy Kepner, Alfredo Cuzzocrea, Jian Tang, Masashi Toyoda
出版社Institute of Electrical and Electronics Engineers Inc.
ページ3104-3110
ページ数7
ISBN(電子版)9781538627143
DOI
出版ステータスPublished - 2017 7 1
イベント5th IEEE International Conference on Big Data, Big Data 2017 - Boston, United States
継続期間: 2017 12 112017 12 14

出版物シリーズ

名前Proceedings - 2017 IEEE International Conference on Big Data, Big Data 2017
2018-January

Other

Other5th IEEE International Conference on Big Data, Big Data 2017
国/地域United States
CityBoston
Period17/12/1117/12/14

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • ハードウェアとアーキテクチャ
  • 情報システム
  • 情報システムおよび情報管理
  • 制御と最適化

フィンガープリント

「Cross-national measurement of polarization in political discourse: Analyzing floor debate in the U.S. the Japanese legislatures」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル