Abstract

This paper uses evidence from laboratory experiments to identify a variety of tribalisms. This is important because some tribalisms encourage zerosum thinking and others do not; and some are not developed by Buchanan. This, in turn, supplies new insights into Buchanan’s project of identifying the kinds of environment that encourage his sense of moral progress. In particular, current levels of inequality become a significant barrier to moral progress not only because they create an economic form of tribalist zero-sum thinking but they also undermine the scope for positive-sum.