Rational choice theory forms the core of the economic approach to human behaviour. It is also the most influential philosophical account of practical rationality. Yet there are persistent controversies about the scope of rational choice theory in philosophy and, increasingly, in economics as...

If in a game with multiple proper coordination equilibria there is a single one that is best for all participants, it is "rational" for each participant to choose the strategy that has the best equilibrium as one of its possible outcomes. This seems so obvious that any plausible theory of...

Egoism and altruism are unequal contenders in the explanation of human behaviour. While egoism tends to be viewed as natural and unproblematic, altruism has always been treated with suspicion, and it has often been argued that apparent cases of altruistic behaviour might really just be some...