In this new edition of his critically acclaimed book, Jon Elster examines the nature of social behavior, proposing choice as the central concept of the social sciences. Extensively revised throughout, the book offers an overview of key explanatory mechanisms, drawing on many case studies and experiments to explore the nature of explanation in the social sciences; an analysis of the mental states - beliefs, desires, and emotions - that are precursors to action; a systematic comparison of rational-choice models of behavior with alternative accounts, and a review of mechanisms of social...