This bestselling textbook, now in its fourth edition, uniquely uses the tools of game theory, information economics, contracting issues, and practical examples to examine multiple facets of industrial organization. New to this edition are 14 optional econometric studies that provide an applied, more challenging option for instructors and students. Additional new features convey the vitality and relevance of industrial organization - both in theory and practice. Key Features: Provides a comprehensive guide to industrial organization in the imperfect market conditions of the real world Includes the most current research on real business behavior and public policy Features stronger coverage of information economics, contracting issues, and game theory than any other IO textbook Explores important econometric issues in 14 optional real-world empirical applications, new to this edition Includes useful derivation and reality checkpoints, including many new to this edition Supported by a website containing an Instructor's Manual and PowerPoint slides. Visit www.blackwellpublishing.com/pepall for more informationGeorge Norman is the author of 'Industrial Organization: Contemporary Theory and Empirical Applications', published 2008 under ISBN 9781405176323 and ISBN 1405176326.