In Part I, we argue that Economics must outgrow the narrow confines of Neo-Classical Economics to embrace ‘sociality’ first championed by Herbert Simon in the mid-1950s and now by a growing number of economists under the banner of Social Economics. We contend here that Neo-Classical...

We discuss how small group interactions overcome evolutionary problems that might otherwise erode vengefulness as a preference trait. The basic viability problem is that the fitness benefits of vengeance often do not cover its personal cost. Even when a sufficiently high level of vengefulness...