Nabil Al-Najjar is the John L. and Helen Kellog Professor of Managerial Economics and Decision Sciences and Chair of the MEDS department. His research focuses on game theory and decision making under ambiguity. More recently, he studied collective decisions in environments with fundamental or scientific uncertainty (such as uncertainties about climate change, medical treatments, and national security). He designed and taught programs for the leadership of the FBI, and medical organizations such as the American Orthopedic Association and the Radiology Leadership Institute.