The secrets of what Arnault knows: How Bernard Arnault built the impossible, and his timeless, transferable lessons of leadership

Jeffrey Sonnenfeld and

December 23, 2025, 8:30 AM ET

Jeffrey Sonnenfeld is Lester Crown Professor of Leadership Practice at the Yale School of Management and founder of the Yale Chief Executive Leadership Institute. A leadership and governance scholar, he created the world’s first school for incumbent CEOs and he has advised five U.S. presidents across political parties. Steven Tian is the research director of the Yale Chief Executive and a former analyst for Rockefeller Capital Management. He previously worked in the office of the State Department’s undersecretary for Iranian nuclear nonproliferation.