Can real actions justify realist principles? Normative behaviourism as a member of the realist family

ABSTRACT If Alison McQueen is right that there is a broad ‘family’ of realist approaches to political theory, then it follows there are several ways of ‘doing’ realism, as illustrated by this collection. Here, I set out one such way, normative behaviourism, by explaining its realist character on four fronts: Its starting point; its values; its ambitions; and its treatment of a shared problem. The argument then considers two key objections to the described approach, both of which affect a range of possible realisms.