Olivier Sibony

HEC PARIS

Professor

Biography

Olivier Sibony is Professor of Strategy (Education Track) at HEC Paris and Associate Fellow of Oxford University’s Saïd Business School. Previously, he was a Senior Partner of McKinsey & Company in France and in the U.S., where he spent 25 years. Olivier’s research and writing center on decision-making and the reduction of judgment errors. He is the author of four books, including the New York Times best-seller Noise: A Flaw in Human Judgment, co-authored with Daniel Kahneman and Cass R. Sunstein, and the internationally acclaimed You’re About to Make a Terrible Mistake, which has been translated into 21 languages. His latest book, Faut-il encore décider ?, co-authored with Eric Hazan, focuses on decision making in the age of AI and will be published in English by Yale University Press in 2027. He has also authored multiple articles in peer-reviewed journals and general-audience publications, including the Harvard Business Review and MIT Sloan Management Review. Olivier Sibony is a sought-after keynote speaker and serves on several corporate, advisory and investment boards. He is a graduate of HEC Paris, holds a PhD from Université Paris PSL-Dauphine, and is a knight in the French Order of the Legion of Honor. He lives in Paris.