This volume draws on disciplines as different as Psychology, Anthropology, History and Biology to explain when and why individuals act to promote their own self-interest and when they sacrifice their own outcomes so that others can benefit.

This volume draws on disciplines as different as Psychology, Anthropology, History and Biology to explain when and why individuals act to promote their own self-interest and when they sacrifice their own outcomes so that others can benefit.

This volume draws on disciplines as different as Psychology, Anthropology, History and Biology to explain when and why individuals act to promote their own self-interest and when they sacrifice their own outcomes so that others can benefit.

This volume draws on disciplines as different as Psychology, Anthropology, History and Biology to explain when and why individuals act to promote their own self-interest and when they sacrifice their own outcomes so that others can benefit.