Ghemawat, Pankaj E., Strategy and the Business Landscape, 3rd, © 2010. Printed and Electronically reproduced by permission of Pearson Education, Inc., Upper Saddle River, New Jersey.
Adapted and reprinted by permission of Harvard Business Review. Exhibit from "The Five Competitive Forces that Shape Strategy" by Michael E. Porter, January 2008. Copyright© 2008 by the Harvard Business School Publishing Corporation; all rights reserved.