These are links that I’ve had trouble finding in the past – version of this paper on Axelrod’s homepage – a related 2013 ethnocentrism paper with an amusing .gif illustrating the results

ethnocentrism-animation2 – an essay by Sarah Perry on Ribbon Farm, pushing the hypothesis that a lot of seemingly-anti-social youth behavior is looking to elicit involuntary affect, lack of which is a sign of sociopathy – The Xunzi essay with the quotation, “Once I spent an entire day lost in thought, but it was not as good as a moment of study.” – At the moment, CSULB seems to have locked off all the .pdfs that KMac used to host on his homepage, but the links are all here.