I want in this paper to do two things. First, I want to respond to some studies that argue that people are often not rational: that people regularly and systematically depart from rationality. The conclusion itself does not worry me. I pressed for the same in a recent book. But the arguments seem to me wrong, and wrong in an interesting way. There may be something to be learned from seeing how and why they fail.

The 'Evolution of Cooperation' addresses a simple yet age-old question; If living things evolve through competition, how can cooperation ever emerge? Despite the abundant evidence of cooperation all around us, there existed no purely naturalistic answer to this question until 1979, when Robert Axelrod famously ran a computer tournament featuring a standard game-theory exercise called The Prisoner's Dilemma. To everyone's surprise, the program that won the tournament, named Tit for Tat, was not only the simplest but the most "cooperative" entrant. (...) This unexpected victory proved that cooperation - one might even say altruism - is mathematically possible and therefore needs no hidden hand or divine agent to create and sustain it. A great roadblock to the understanding of all sorts of behavior was at last removed. The updated edition includes an extensive new chapter on cooperation in cancer cells and among terrorist organizations. (shrink)

The following values have no corresponding Zotero field: PB - JSTOR.