University of Massachusetts Amherst

Nirenberg Chaired Professor of Business Leadership Management at University of Massachusetts Amherst

Stephen M. Ross School of Business

Carey Business School

Professor Emeritus of Business Administration. Professor Emeritus of Management and Organizations at Stephen M. Ross School of Business

Professor (Management & Organization) at Carey Business School

The Wharton School

The Lauder Professor Emeritus of Marketing at The Wharton School