PSYC 3420 Chapter Notes - Chapter 9: Coevolution, Parental Investment, Inclusive Fitness
7 Feb 2018
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The problem of altruism: the problem of altruism. One of the most important adaptive problems is ensuring that the benefits it bestows will be returned in the future. Tit for tat: the problem of reciprocal altruism is similar to a game known as the prisoner"s dilemma . It is a hypothetical situation in which two people have been thrown in prison for a crime they are accused of committing together and of which they are indeed guilty. Police interrogate both prisoners, trying to get them to rat on the other. If neither one implicates the other, the police will be forced to set them both free for lack of evidence. In other words, start by cooperating, and continue cooperating if the other is also cooperating. If the other defects then defect in kind: trivers labeled this contingent reciprocity , axelrod identified three features of this strategy that represented the keys to its success, 1.
