Industrial Organization: Competition, Strategy, Policy, second edition, is a textbook in industrial organization. It provides coverage of the latest theories of industrial organization, and it examines empirical evidence concerning the strategies, behaviour and performance of firms and industries. In selecting material for inclusion in Industrial Organization: Competition, Strategy, Policy, second edition, we have attempted to provide readers with a flavour of the historical development of industrial organization. The book reflects the development of this subject area from its origins in the classical theories of the firm, followed by its emergence as a recognized subdiscipline within economics around the midtwentieth century, right through to the present. Today, industrial organization draws on an impressive array of contributions from fields of economic inquiry as diverse as game theory, information theory, organization theory, agency theory and transaction cost analysis.