Do voters vote ideologically?

• 成果类型: Article
• 署名作者: Degan, Arianna; Merlo, Antonio
• 署名单位: University of Pennsylvania; University of Quebec; University of Quebec Montreal; National Bureau of Economic Research
• 刊物名称: JOURNAL OF ECONOMIC THEORY
• ISSN/ISSBN: 0022-0531
• DOI: 10.1016/j.jet.2008.10.008
• 发表日期: 2009
• 页码: 1868-1894
• 关键词: Voting; spatial models; Falsifiability; testing

摘要

In this paper we address the following question: To what extent is the hypothesis that voters vote ideologically (i.e., they always vote for the candidate who is ideologically closest to them) testable or falsifiable? We show that using data only on how individuals vote in a single election, the hypothesis that voters vote ideologically is irrefutable, regardless of the number of candidates competing in the election. On the other hand, using data on how the same individuals vote in multiple elections, the hypothesis that voters vote ideologically is potentially falsifiable, and we provide general conditions under which the hypothesis can be tested. (C) 2009 Elsevier Inc. All rights reserved.