Self-Equivalent Voting Rules

Héctor Hermida-Rivera

Papers from arXiv.org

Abstract: In this paper, I introduce a novel stability axiom for stochastic voting rules, called self-equivalence, by which a society considering whether to replace its voting rule using itself will choose not to do so. I then show that the unique voting rule satisfying the democratic principles of anonymity, efficiency, monotonicity, and neutrality as well as the stability principle of self-equivalence must assign to every voter equal probability of being a dictator (i.e., uniform random dictatorship). Thus, this paper suggests one reason why most democratic societies normally choose whether to replace their voting rule using a voting rule other than itself, or in binary elections against just one other voting rule.

Date: 2025-06, Revised 2026-06
New Economics Papers: this item is included in nep-cdm, nep-des, nep-mic and nep-pol
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