• 분석과 대안
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• 제3권1호
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• pp.63-92
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• 2019

What motivates split-ticket voting in mixed electoral systems, where voters choose one party in district races and another party on the party list ballot? While much of the literature assumes strategic intent, three aspects commonly are overlooked: the competitiveness of district races, the presence of a district candidate from one's preferred party, and whether voters know the electoral threshold for party list seats. Furthermore, few studies disaggregate types of split-ticket voting (e.g. not voting for one's preferred party in a district vs. party list). Taiwan provides an intriguing case study for analysis, not only as a relatively new adopter of a mixed system, but also the presence of additional conditions that would encourage at least the consideration of a split ticket. Using survey data from the Taiwan's Election and Democratization Studies (TEDS) after the Taiwan's 2016 Legislative Yuan election, this analysis finds that knowing the threshold, the winner's margin, and the placement of a district candidate from one's preferred party all influence split-ticket voting among those with a partisan preference. However, closer inspection identifies a distinction between defecting from the district versus the party list. Evidence shows that district competitiveness and candidate placement influences defection from the district candidate, while the electoral threshold influences defection from the party list. The results add to our understanding of strategic and non-strategic incentives in mixed systems.

• 의정연구
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• 제25권2호
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• pp.69-101
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• 2019

본 연구는 정당의 경선을 거쳐 당선된 국회의원들이 그렇지 않은 의원들에 비하여 당론으로부터 이탈하는 경향성이 더 강하게 나타나는지 검증하는 것에 목적이 있다. 이를 위하여 제20대 국회 본회의 표결을 중심으로 의원들의 당론이탈 투표 경향성을 분석하였다. 분석 결과, 경선을 통해 당선된 지역구 의원들이 당내 지명이나 전략 공천 방식으로 당선된 의원들에 비하여 당론으로부터 더 이탈하는 경향이 나타났다. 이러한 결과는 정당의 상향식 공천 방식의 도입이 확대될 경우 정당의 표결 응집력을 약화시키거나 의원의 입법 자율성을 강화하는 데 기여할 수 있음을 시사한다.