Description: How do people, animals, and institutions make decisions in a complex and uncertain world? Rational choice theory answers this question from the perspective of an omniscient and omnipotent superintelligence that decides by optimizing. In contrast, this book promotes the concept of the "adaptive toolbox", a repertoire of fast and frugal heuristics for real people with limited time, knowledge, and resources. It views bounded rationality neither as optimality under constraints nor as the study of people's reasoning fallacies. The strategies in the adaptive toolbox dispense with optimization and, for the most part, with calculations of probabilities and utilities.

The book extends the concept of bounded rationality from cognitive tools to emotions; it analyzes social norms, imitation, and other cultural tools as rational strategies; and it shows how smart strategies can exploit the structures of environments. It brings together experts from cognitive science, economics, evolutionary biology, and anthropology to create an interdisciplinary basis for understanding the adaptive toolbox.

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