This volume is a powerful rebuttal of the remarkably influential theories underlying 'rational choice analysis'. Rational choice analysis maintains that social life is principally to be explained as the outcome of rational choices on the part of individual actors. Adherents of this view include not only philosophers, political scientists and sociologists, but also prominent politicians in Western governments - notably of the United Kingdom and the United States. Barry Hindess argues that the theory is seriously deficient, first, because there are important actors in the modern world other than human individuals, and second, because it says nothing about those processes of deliberation that play an important part in actors' decisions. These points are established through detailed examination of the concepts of the actor and of rationality - providing an overall argument that constitutes a serious challenge to any adherent of rational choice analysis.