PSYC 3100 Lecture Notes - Lecture 4: Grim Trigger

• School: University of Guelph
• Department: Psychology
• Course: PSYC 3100
• Professor: Pat Barclay

Document Summary

Imagine this : you and someone committed a crime, they have enough evidence to convict you to. If neither of you confess you get one year. If you co(cid:374)fess a(cid:374)d they do(cid:374)"t (cid:1004) years for you a(cid:374)d (cid:1005)(cid:1004) for them. Strategies: random, always defect, always cooperate, gri(cid:373) trigger: cooperate u(cid:374)til it"s part(cid:374)er defected, sneaky: start out cooperate occasionally slide into defected, tick for tack. Tit for tat (tft: very simple strategy, c on first round, after imitates partners previous move, never beats a given partner, never gets a higher score. Tft c c c d d c c. Characteristic of tft: nice nice strategies could get reward in the long run, punitive willing to punish a bad partner, forgiving does(cid:374)"t hold a grudge, simple easy to predict. Level of analysis: function: repeated long term cooperation, proximity: warmth, caring, trust and bookkeeping long term cooperation.