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Neutral candidates in approval and disapproval vote

Stéphane Gonzalez (), Annick Laruelle and Philippe Solal

No Ikerlanak;2017-105, IKERLANAK from Universidad del País Vasco - Departamento de Fundamentos del Análisis Económico I

Abstract: In this article, the question is to select the “best” candidates within a set of candidates when voters cast approval-disapproval ternary ballots. That is, three options are offered to voters: casting a vote “in favor”, a “neutral” vote or a vote “against” each candidate. We first review desirable properties that a rule aggregating approval-disapproval ternary ballots should satisfy. We check whether the rules that have been proposed in the literature satisfy them. Then, we provide comparable axiomatizations of three rules: one is the lexicographical extension of the Approval rule for binary ballots; the second is the lexicographical extension of the Disapproval rule for binary ballots; and the third rule eliminates candidates with more opponents and fewer supporters than other candidates.

Keywords: approval; disapproval; voting; compromise; condorcet; principle (search for similar items in EconPapers)
JEL-codes: D71 D72 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cdm, nep-gth, nep-mic and nep-pol
Date: 2017-11-24
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Persistent link: https://EconPapers.repec.org/RePEc:ehu:ikerla:25274

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Dpto. de Fundamentos del Análisis Económico I, Facultad de CC. Económicas y Empresariales, Universidad del País Vasco, Avda. Lehendakari Aguirre 83, 48015 Bilbao, Spain

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