How People Understand Voting Rules

Antoinette Baujard, Roberto Brunetti (), Isabelle Lebon and Simone Marsilio
Additional contact information
Roberto Brunetti: Université Lumière Lyon 2, CNRS, Université Jean Monnet Saint-Etienne, emlyon business school, GATE, 69007, Lyon, France, and Univ Rennes, CNRS, CREM-UMR6211, F-35000 Rennes, France
Simone Marsilio: Università Vita-Salute San Raffaele, Milano

No 2408, Working Papers from Groupe d'Analyse et de Théorie Economique Lyon St-Étienne (GATE Lyon St-Étienne), Université de Lyon

Abstract: If individuals are to be empowered in their selection or use of a voting rule, it is necessary that they understand it. This paper analyzes people’s understanding of two voting rules: evaluative voting and majority judgment. We first distinguish three components of understanding in this context: how to fill in the ballot; how votes are aggregated; and how to vote strategically. To measure each component, we draw on results from a lab experiment on incentivized voting where participants are exogenously assigned single-peaked preferences and answer comprehension questions on the rules employed. We find that most participants understand how to fill in the ballot and how votes are aggregated; however, participants’ understanding of vote aggregation under majority judgment is lower and more heterogeneous. While some participants correctly understand its aggregation property, a sizable group fails to grasp it. We also observe no difference in voting behavior between evaluative voting and majority judgment: the data confirm the theoretical prediction that under evaluative voting there will be a greater incidence of strategic voting through the use of extreme grades, but contradict the prediction that under majority judgment voters will vote more sincerely. Finally, we find that with majority judgment, the better voters understand how votes are aggregated, the more they make use of extreme grades.

Keywords: voting rules; understanding; evaluative voting; majority judgment; laboratory experiment (search for similar items in EconPapers)
JEL-codes: A13 C92 D71 D72 O35 (search for similar items in EconPapers)
Date: 2024
New Economics Papers: this item is included in nep-cdm, nep-exp and nep-pol
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https://www.gate.cnrs.fr/RePEc/2024/2408.pdf (application/pdf)

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Working Paper: How People Understand Voting Rules (2024)
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