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Journal of Political Economy Vol. 115 No. 3 2007

Moral Rules, the Moral Sentiments, and Behavior: Toward a Theory of an Optimal Moral System

Louis Kaplow1,2; Steven Shavell1,2

1 National Bureau of Economic Research · 2 Harvard University

Abstract

How should moral sanctions and moral rewards—the moral sentiments involving feelings of guilt and of virtue—be employed to govern individuals’ behavior if the objective is to maximize social welfare? In the model that we examine, guilt is a disincentive to act and virtue is an incentive because we assume that they are negative and positive sources of utility. We also suppose that guilt and virtue are costly to inculcate and are subject to certain constraints on their use. We show that the moral sentiments should be used chiefly to control externalities and further that guilt is best to employ when most harmful acts can successfully be deterred whereas virtue is best when only a few individuals can be induced to behave well. We also contrast the optimal use of guilt and virtue to optimal Pigouvian taxation and discuss extensions of our analysis.

DOI
10.1086/519927
Volume
115
Issue
3
Pages
494-514
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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