This first volume of The Foundations of Behavioral Economic Analysis covers the opening topic found in this definitive introduction to the subject: the behavioral economics of risk, uncertainty, and ambiguity. It is an essential guide for advanced undergraduate and postgraduate students seeking a concise and focused text on this important subject, and examines how the decision maker chooses his optimal action in the presence of risk, uncertainty, and ambiguity.This, the first of seven volumes, revises and updates Dhami's leading textbook allowing the reader to pursue parts of this rapidly growing field that are tailored to their specific interests in behavioural economics