Regret-free truth-telling voting rules
R. Pablo Arribillaga and
No 4543, Asociación Argentina de Economía Política: Working Papers from Asociación Argentina de Economía Política
We study the ability of different classes of voting rules to induce agents to report their preferences truthfully, if agents want to avoid regret. First, we show that regret-free truth-telling is equivalent to strategy-proofness among tops-only rules. Then, we focus on three important families of (non-tops-only) voting methods: maxmin, scoring, and Condorcet consistent ones. We prove positive and negative results for both neutral and anonymous versions of maxmin and scoring rules. In several instances we provide necessary and sufficient conditions. We also show that Condorcet consistent rules that satisfy a mild monotonicity requirement are not regret-free truth-telling. Successive elimination rules fail to be regret-free truth-telling despite not satisfying the monotonicity condition. Lastly, we provide two characterizations for the case of three alternatives and two agents.
JEL-codes: D7 (search for similar items in EconPapers)
Pages: 36 pages
New Economics Papers: this item is included in nep-des and nep-mic
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Working Paper: Regret-free truth-telling voting rules (2023)
Working Paper: Regret-Free Truth-Telling Voting Rules (2022)
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Persistent link: https://EconPapers.repec.org/RePEc:aep:anales:4543
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