PSYCH 3F03 Lecture Notes - Lecture 6: Snowdrift, Nepotism, Signalling Theory
12 Mar 2018
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Quiz this friday- fuck you krupp: liberman graph- marriages in taiwan. Why be social: after all, social living entails costs (competition over resources, disease transmission) If you get sick other people can take care of you. More people who can collaborate to get resources. A group of individuals may do a better job hunting than a single. If you are a prey item, you and others have more eyes on lookout individual. Cumulative advantage of culture: cooperation with kin can be satisfying even if it is never repaid because the. But cooperation with non-relatives will be selected against, and will thus evolve to be unsatisfying, unless it is literally repaid. So sociality among non-kin must bring direct benefits to the actor (cid:498)payback(cid:499) for nepotism is often a gain in indirect fitness. Here"s where things get muddy, costs and benefits are usually conceived. One solution is to recast these effects as a short-term benefit, v, by their short-term effects.
