The strategy method is often used in public goods games to measure an individual's willingness to cooperate depending … on the level of cooperation by their groupmates (conditional cooperation). However, while the strategy method is … of conditional cooperation. This problem was highlighted by two previous studies which found that the strategy method …

in which reciprocity yields privately and socially optimal levels of cooperation, this paper identifies the conditions … under which reciprocity generates inefficient cooperation. Two groups of cases are presented. In one group reciprocity …

Development of human societies requires cooperation among unrelated individuals and obedience to social norms. Although … punishment is widely agreed to be potentially useful in fostering cooperation, many recent results in psychology and economics … eliminate its detrimental effects on cooperation. In a public goods game designed to create tension between group and individual …

preferences are endogenous and account for the evolution of cooperation when all the players are initially entirely selfish. In … frequency of cooperation. In the long run, cooperation turns out to be the strategic choice that obtains the best performances …

, and Consequences -- II The Behavioral Ecology of Cooperation -- 2 The Evolution of Cooperation in Primate Groups -- 3 The … Natural History of Human Food Sharing and Cooperation: A Review and a New Multi- Individual Approach to the Negotiation of …