Andrew Campbell is a Director of Ashridge Strategic Management Centre and active as a consultant on strategic issues for major corporate clients. He is also a visiting professor at City University. Previously he was a Fellow in the Centre for Business Strategy at the London Business School. Before that he was a consultant for six years with McKinsey & Co, working on strategy and organization problems in London and Los Angeles. He also spent three years as a loan officer with Investors in Industry. Andrew Campbell holds an MBA from the Harvard Business School where he was a Harkness Fellow and a Baker Scholar. His books include: Synergy (1998), Core Competency-Based Strategy (1997), Breakup! (1997), Corporate-LevelStrategy (1994), Strategic Synergy (1992), A Sense of Mission (1990), Strategies and Styles (1987). e-mail: andrew.campbell@ashridge.org.uk

David O. Faulkner is Professor of Strategy, Royal Holloway, University of London, and Visiting Research Professor, The Open University. His specialist research area is international Cooperative Strategy and Acquisitions on which subject he has written, edited, or co-authored a number of books including: Strategies of Cooperation: Managing Alliances, Networks, and Joint Ventures (1998); Co-operative Strategy: Economic, Business and Organizational Issues (2000); The Dynamics of International Strategy (1999); Strategic Alliances: Cooperating to Compete (1995); and The Management of International Acquisitions (2001). He is an Oxford educated economist by background, who has spent much of his early career as a strategic management consultant with McKinsey & Co & Arthur D. Little, e-mail: david. faulkner@christ-church.ox.ac.uk