On public opinion polls and voters' turnout

Klor, Esteban F. and Winter, E. (2018) On public opinion polls and voters' turnout. Journal of Public Economic Theory, 20 (2). pp. 239-256. ISSN 1097-3923

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This paper studies the effects that the revelation of information on the electorate's preferences has on voters' turnout. The experimental data show that closeness in the division of preferences induces a significant increase in turnout. Moreover, for closely divided electorates (and only for these electorates), the provision of information significantly raises the participation of subjects supporting the slightly larger team relative to the smaller team. We show that the heterogeneous effect of information on the participation of subjects in different teams is driven by the subjects' (incorrect) beliefs of casting a pivotal vote. Simply put, subjects overestimate the probability of casting a pivotal vote when they belong to the team with a slight majority, and choose the strategy that maximizes their utility based on their inflated probability assessment. Empirical evidence on gubernatorial elections in the United States between 1990 and 2005 is consistent with our main experimental result. Namely, we observe that the difference in the actual vote tally between the party leading according to the polls and the other party is larger than the one predicted by the polls only in closely divided electorates. We provide a behavioral model that explains the main findings of our experimental and empirical analyses. © 2017 Wiley Periodicals, Inc.

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Journal Article
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Journal of Public Economic Theory
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This is the peer reviewed version of the following article: Klor EF, Winter E. On public opinion polls and voters' turnout. Journal of Public Economic Theory. 2018;20:239–256. https://doi.org/10.1111/jpet.12274 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/jpet.12274/abstract This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
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21 Nov 2018 14:54
Last Modified:
18 Sep 2023 01:25