Adam M Brandenburger graduated from Cambridge and is a professor at the Harvard Business School. He is the author of many of Harvard's bestselling strategy cases. He has worked with Ciba-Geigy, Fidelity Investments, Honeywell, KPMG Peat Marwick, Merck, and Northwestern Life Insurance. Barry J Nalebuff graduated from Oxford and is a professor at Yale Management School. He is co-author of Thinking Strategically. He has consulted for American Express, Citibank, General Re, IC-O, Merck, McKinsey, Proctor & Gamble, and RTZ, and is a principal of the Law and Economics Consulting Group.