Thaler, Richard H. 1945- Nudge : improving decisions about health, wealth, and happiness / Richard H. Thaler, Cass R. Sunstein. - Rev. and expanded ed. - New York, N.Y. : Penguin Books, c2009. - 312 p. : ill. Includes bibliographical references and index ISBN: 9780143115267 Subjects--Topical Terms: Economics--Psychological aspectsChoice (Psychology)--Economic aspectsDecision making--Psychological aspectsConsumer behavior LC Class. No.: HB74.P8 / T424N 2009