The Influence of Combining Constituencies on Voter Turnout

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Other Title
  • 選挙区域の拡大が投票率に及ぼす影響
  • 選挙区域の拡大が投票率に及ぼす影響 : 鳥取・島根両県における「合区選挙」実施を踏まえて
  • センキョ クイキ ノ カクダイ ガ トウヒョウリツ ニ オヨボス エイキョウ : トットリ ・ シマネ リョウ ケン ニ オケル 「 ゴウク センキョ 」 ジッシ オ フマエテ
  • The Case of Tottori and Shimane Prefectures in the 2016 Upper House Election
  • 鳥取・島根両県における「合区選挙」実施を踏まえて
Published
2017
DOI
  • 10.14854/jaes.33.2_5
Publisher
Japanese Association of Electoral Studies

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Description

The merged constituencies which combined Tottori and Shimane prefectural constituencies and Tokushima and Kochi prefectural constituencies, has been applied for the first time since the 2016 upper house election, and negative effects on electoral process and voter turnout in those districts has been seen in that election. In this paper, I focused on turnout change from previous elections in the Tottori and Shimane prefectural constituency. I analyzed the data aggregated in each municipalities which also includes Okayama and Yamaguchi electoral districts, where the single-member district as well as the Tottori and Shimane constituency in the same Chugoku region but the combination of constituency was not applied. I found that turnout in municipalities in Tottori and Shimane had still been in a higher level, but the application of merging constituencies brought about the negative effect, which was remarkable in Tottori district, on turnout change since last upper house election.

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