[chezlaw]

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Declining in the ultimatum game may not be as irrational as the article suggests. In the short run, it is clearly -EV, however if you were to play an iterated version, punishing small offers would certainly be necessary to maximize one's expected value. Considering that we seem to have evolved mechanisms for reciprocation in the prisoner's dilemma, this seems like an extension of that; however, when viewed in a single iteration (which is unnatural and uncommon for us, considering that the social circumstances where we would apply such behavior are almost never singular), it appears irrational.

As always, great article, please post more [img]/images/graemlins/smile.gif[/img]

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Don't know if anyone is interest in the unhijacked thread but this idea of a single iteration is mistaken. Even if we play the game only once its not irrational to offer a fairly generous split and turn down a derisory offer.

Effectively for humans there are no single iteration scenarios. Its all just more of the same.

chez