PSYCH 3F03 Chapter Notes - Chapter 0: Reciprocal Altruism, Exaptation, Senescence
10 Dec 2016
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Reputation can support altruism in large groups but some other mechanism is needed to explain why reciprocity should be linked to prosociality not selfish or neutral behavior. Used as a behavioral measure of altruism not linked to kinship, reciprocity, reputation, or the immediate threat of punishment. Same as ug except that player 2 cannot reject. Player 1 merely dictates the portions of the money received by them and player 2. A purely self-interested individual would offer zero. Stake (cid:523)sum of money(cid:524) was (cid:883) day"s wage in the local economy to guarantee motivation and attention. Both types of costly punishment showed a universal pattern, with an. Notes increasing proportion of individuals from every society choosing t punish as offers approach zero. There was substantial differences across populations in their overall willingness to punish unequal offers. For every population probability of rejection decreased as offers increase from 0% to 50%
