Darden School of Business

Professor and Associate Chair at Darden School of Business

Babson Olin Graduate School of Business

CSX Professor of Business Administration and Economics & Finance Area Head at Babson Olin Graduate School of Business

Harvard Business School

Albert H. Gordon Professor of Business Administration, Emeritus at Harvard Business School

McCourt School of Public Policy

Professor of Economics, at McCourt School of Public Policy

UCL School of Management

Assistant Professor at UCL School of Management

School of International and Public Affairs

Adjunct Senior Research Scholar in the Arnold A. Saltzman Institute of War and Peace Studies at School of International and Public Affairs

Harvard Kennedy School

300th Anniversary University Professor at Harvard Kennedy School

HEC Paris

Professor Informations Systems and Operations Management at HEC Paris

Mendoza College of Business

Emeritus at Mendoza College of Business

Harvard Business School

Jesse Isidor Straus Professor of Business Administration at Harvard Business School