Strategic Behavior of Moralists and Altruists

Alger, Ingela and Weibull, Jörgen W. (2017) Strategic Behavior of Moralists and Altruists. IAST working paper, n. 17-69, Toulouse

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Abstract

Does altruism and morality lead to socially better outcomes in strategic interactions than selfishness. We shed some light on this complex and non-trivial issue by examining a few canonical strategic interactions played by egoists, altruists and moralists. By altruists we mean people who do not only care about their own material payoffs but also about those to others, and by a moralist we mean someone who cares about own material payoff and also about what would be his or her material payoff if others were to act like himself or herself. It turns out that both altruism and morality may improve or worsen equilibrium outcomes, depending on the nature of the game. Not surprisingly, both altruism and morality improve the outcomes in standard public goods games. In infinitely repeated games, however, both altruism and morality may diminish the prospects of cooperation, and to di¤erent degrees. In coordination games, morality can eliminate socially inefficient equilibria while altruism cannot.

Item Type: Monograph (Working Paper)
Language: English
Date: August 2017
Place of Publication: Toulouse
Uncontrolled Keywords: altruism, morality, Homo moralis, repeated games, coordination games
JEL codes: C73 - Stochastic and Dynamic Games; Evolutionary Games; Repeated Games
D01 - Microeconomic Behavior - Underlying Principles
D03 - Behavioral Economics; Underlying Principles
Subjects: B- ECONOMIE ET FINANCE
Divisions: TSE-R (Toulouse)
Institution: Université Toulouse 1 Capitole
Site: UT1
Date Deposited: 28 May 2018 09:28
Last Modified: 30 May 2018 06:47
OAI ID: oai:tse-fr.eu:31809
URI: http://publications.ut-capitole.fr/id/eprint/25634

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