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Solidarity with respect to small changes in preferences in public good economies with single-peaked preferences

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  • Harless, Patrick

Abstract

We study the problem of choosing a point on an interval when agents have single-peaked preferences. Our primary concern is solidarity: When the environment changes, agents should gain or lose together. “Welfare dominance under preference replacement” requires this conclusion when the preferences of one agent change. Instead of requiring solidarity for all possible changes in preferences, we introduce a parameterized solidarity property, “ϵ-welfare dominance”, which requires the conclusion of welfare dominance only for arbitrarily small changes in preferences. In this model, welfare dominance and efficiency characterize a class of “target” rules, each of which selects the efficient point nearest to its target (Thomson, 1993). Although our property is weaker than and distinct from welfare dominance, it also characterizes the target rules when combined with efficiency.

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  • Harless, Patrick, 2015. "Solidarity with respect to small changes in preferences in public good economies with single-peaked preferences," Mathematical Social Sciences, Elsevier, vol. 75(C), pages 81-86.
  • Handle: RePEc:eee:matsoc:v:75:y:2015:i:c:p:81-86
    DOI: 10.1016/j.mathsocsci.2015.02.006
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    References listed on IDEAS

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    Cited by:

    1. Bettina Klaus & Panos Protopapas, 2017. "Solidarity for public goods under single-peaked preferences: Characterizing target set correspondences," Cahiers de Recherches Economiques du Département d'économie 17.13, Université de Lausanne, Faculté des HEC, Département d’économie.
    2. Harless, Patrick, 2016. "Solidarity in preference aggregation: Improving on a status quo," Games and Economic Behavior, Elsevier, vol. 95(C), pages 73-87.
    3. Bettina Klaus & Panos Protopapas, 2016. "Solidarity Properties of Choice Correspondences," Cahiers de Recherches Economiques du Département d'économie 16.14, Université de Lausanne, Faculté des HEC, Département d’économie.

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