Nicolai Foss is Professor of Economic Organization and Director of the Learning, Incentives, and Knowledge Program at the Copenhagen Business School. His research interests centre around the theory of the firm and strategic management. He has published extensively in academic journals and has also edited a number of volumes on economic organization and firm strategy.Volker Mahnke is Associate Professor at the Department of Industrial Economics and Strategy at the Copenhagen Business School. He is project leader for 'The Economics of Knowledge Management and Product Innovation in Buyer/Supplier Systems'. His research interests include the knowledge-based theory of the firm, strategy process, and the impact of knowledge structures on corporate performance.