Daniel Kahneman is the author of Thinking, Fast and Slow. He won the 2002 Nobel Prize in Economic Sciences and the National Medal of Freedom in 2013. Olivier Sibony is Professor of Strategy and Business Policy at HEC Paris. Previously, he spent twenty-five years as a senior partner at McKinsey & Company. Cass R. Sunstein's publications include Nudge (co-authored with Richard H. Thaler). He is the Robert Walmsley University Professor at Harvard.