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Characterizing the Plurality Rule via Clone Invariance

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  • Leo Goto

Abstract

The Plurality rule is vulnerable to vote splitting between similar alternatives. Defying conventional wisdom, we characterize the Plurality rule through a specific type of clone independence condition. We further introduce the notion of a one-parameter family of $p$-Clone Resistance ($p$-CR), and examine the property within the class of scoring rules. For $p \in (0,1)$, nontrivial rules exist with at most three alternatives, but only the Trivial rule generally satisfies the condition.

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  • Leo Goto, 2026. "Characterizing the Plurality Rule via Clone Invariance," Papers 2608.18798, arXiv.org.
    • Handle: RePEc:arx:papers:2608.18798
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    References listed on IDEAS

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