Comment by pimlottc

Oh, I know, I don't dispute that, and the name likely makes no difference at all to experienced players, but new players may be less hesitant to stab if the very name of the game seems to condone it.

I mean, if you were to take two different groups and put them both through the Prisoner's Dilemma game, presenting it as "The Cooperation Game" to one and "The Betrayal Game" to the other, wouldn't you expect to see some difference in the outcomes? I'm sure someone has done this before; perhaps someone with better google-fu can dig it up.