Stefan is a full-time research professor at ESSEC. He is widely known for his expertise in responsible leadership, sustainability, diversity management, international HRM and OB. He has shared this expertise in numerous books, book chapters, and articles in both the international trade and academic press. His research and teachings have brought Stefan to assignments in a wide range of academic institutions around the world. He is an editorial board member and reviewer for numerous international academic management journals. Stefan has worked with governmental organizations and companies in the private sector, and has developed and conducted company training programs for firms in France and internationally.