The paper deals with the literature on social evolution.

This paper explores the quantitative relation between non-random, assortative matching and the maintenance of cooperative behavior under evolutionary dynamics.

We ask whether university-wide site licences perform a fiscal function that benefits the academic community. We find a surprising answer. If a journal is priced to maximize the publisher's profits, scholars on average are likely to be worse off when universities purchase site lisences than they...

By charging prices far above their average costs, commercial publishers of academic journals have been draining huge amounts of money from Univerity budgets.