prase comments on Prisoner's Dilemma Tournament Results - Less Wrong

101 Post author: prase 06 September 2011 12:46AM

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Comment author: DavidPlumpton 06 September 2011 12:51:10AM 3 points [-]

Having a known number of rounds seems like a problem to me. Everybody wants to defect on the last round. It might be interesting to retry with a number of rounds chosen randomly from 100 to 110 or where after 100 each round has a 25% chance of being the final round. However a large number of matches might be needed to offset the advantages of playing in some matches with a higher than average number of rounds.

Comment author: prase 06 September 2011 09:34:25AM 3 points [-]

If I do a random-length tournament, I'd rather use an exponential distribution of the number of rounds. A little variance in 100 + Random(10) doesn't make a big difference from the fixed-length matches.