Nash, bargaining and evolution

Evolutionary accounts of morality tend to consider behavior in rather simple scenarios. For instance, evolutionary work on fairness focuses on the division of a windfall and, importantly, assumes the position of those involved are entirely symmetric. We consider more complicated strategic settings and find that there is a strong tendency for evolution to produce divisions consistent with the so-called Nash bargaining solution. We also uncover the evolutionary importance of comprehensiveness, an often-overlooked feature of division problems