This is the first definitive graduate and advanced undergraduate level treatment of behavioral economics that describes the cutting edge of the subject. It carefully outlines the evidence, describes the relevant theory, and provides interesting and economically relevant applications of the theory. Behavioral economics is not only the fastest growing area in economics but it is rapidly going mainstream, and it is most likely to be the future of economics. The field has lacked a definitive treatment- this is it. The book covers most areas in economics, which accounts for its length. Behavioral economics not only explains the evidence much better, it is fun to do relative to the dismal science of traditional economics; this book conveys both these aspects.