George S. Day is the Geoffrey T. Boisi Professor, Professor of Marketing and co-Director of the Mack Institute For Innovation Management at the Wharton School of the University of Pennsylvania. He was previously the Executive Director of the Marketing Science Institute. He has been a consultant to numerous corporations such as General Electric, IBM, Metropolitan Life, Unilever, E.I. DuPont de Nemours, W.L. Gore and Associates, Coca-Cola, Boeing, LG Corp., Best Buy, Merck, Johnson & Johnson, and Medtronic. He is the past chairman of the American Marketing Association. His primary areas of activity are marketing, strategy making, organic growth and innovation, organizational change, and competitive strategies in global markets.