Utilitarians Are Not Always Fair and the Fair Are Not Always Utilitarian: Distinct Motives for Cooperation1

This paper investigates the effect of utilitarianism and fairness motives on cooperative behavior in a real‐life, large‐scale social dilemma while also looking at the moderating effect of various situational factors on this relationship. Perceived criticality of the situation and high‐efficacy beliefs are shown to increase cooperation of utilitarians more than they increase cooperation of those with a fairness motive. Ownership of the problem and the expected cooperation of others on the other hand are shown to increase cooperation of those with a fairness motive more so than they increase cooperation of utilitarians. Implications of these findings for increasing cooperation in social dilemmas are discussed.