Utilitarian Social Choice and Distributional Welfare Analysis

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Main Authors: Echenique, Federico, Valenzuela-Stookey, Quitzé
Format: Preprint
Published: 2024
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author Echenique, Federico
Valenzuela-Stookey, Quitzé
author_facet Echenique, Federico
Valenzuela-Stookey, Quitzé
contents Harsanyi (1955) showed that the only way to aggregate individual preferences into a social preference which satisfies certain desirable properties is ``utilitarianism'', whereby the social utility function is a weighted average of individual utilities. This representation forms the basis for welfare analysis in most applied work. We argue, however, that welfare analysis based on Harsanyi's version of utilitarianism may overlook important distributional considerations. We therefore introduce a notion of utilitarianism for discrete-choice settings which applies to \textit{social choice functions}, which describe the actions of society, rather than social welfare functions which describe society's preferences (as in Harsanyi). We characterize a representation of utilitarian social choice, and show that it provides a foundation for a family of \textit{distributional welfare measures} based on quantiles of the distribution of individual welfare effects, rather than averages.
format Preprint
id arxiv_https___arxiv_org_abs_2411_01315
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Utilitarian Social Choice and Distributional Welfare Analysis
Echenique, Federico
Valenzuela-Stookey, Quitzé
Theoretical Economics
Harsanyi (1955) showed that the only way to aggregate individual preferences into a social preference which satisfies certain desirable properties is ``utilitarianism'', whereby the social utility function is a weighted average of individual utilities. This representation forms the basis for welfare analysis in most applied work. We argue, however, that welfare analysis based on Harsanyi's version of utilitarianism may overlook important distributional considerations. We therefore introduce a notion of utilitarianism for discrete-choice settings which applies to \textit{social choice functions}, which describe the actions of society, rather than social welfare functions which describe society's preferences (as in Harsanyi). We characterize a representation of utilitarian social choice, and show that it provides a foundation for a family of \textit{distributional welfare measures} based on quantiles of the distribution of individual welfare effects, rather than averages.
title Utilitarian Social Choice and Distributional Welfare Analysis
topic Theoretical Economics
url https://arxiv.org/abs/2411.01315