In this book, acclaimed economist Herbert Gintis ranges widely across many fields--including economics, psychology, anthropology, sociology, moral philosophy, and biology--to provide a rigorous transdisciplinary explanation of some fundamental characteristics of human societies and social behavior. Because such behavior can be understood only through transdisciplinary research, Gintis argues, Individuality and Entanglement advances the effort to unify the behavioral sciences by developing a shared analytical framework--one that bridges research on gene-culture coevolution, the rational-actor model, game theory, and complexity theory. At the same time, the book persuasively demonstrates the rich possibilities of such transdisciplinary work.