Dan Ariely studies how people actually act in the marketplace, as opposed to how they should or would perform if they were completely rational. His interests span a wide range of daily behaviors and his experiments are consistently interesting, amusing, and informative, demonstrating profound ideas that fly in the face of common wisdom.Dan is the James B. Duke Professor of Psychology & Behavioral Economics at Duke University, where he holds appointments at the Fuqua School of Business, the Center for Cognitive Neuroscience, the School of Medicine, and the department of Economics. He is also a founding member of the Center for Advanced Hindsight.Dan earned a bachelor’s degree in psychology from Tel Aviv University, his master’s and doctorate degrees in cognitive psychology from the University of North Carolina, and a doctorate in Business Administration from Duke University. He is the author of the New York Times Bestseller Predictably Irrational: The Hidden Forces that Shape Our Decisions and of The Upside of Irrationality:The Unexpected Ways We Defy Logic at Work and at Home. His research has been published in leading psychology, economics, and business journals, and has been featured occasionally in the popular press. He is a regular contributor to Marketplace.