The economics of industrial organization is undergoing major change and development. New methods of analysis are forcing a substantial rethink of the causes, nature, and effects of competitive behaviour. Traditional views are being reconsidered and replaced by different perspectives; empirical relationships are being reinterpreted; and important implications for anti-trust and industrial policies are being derived from the new approaches. The 12 original contributions which are contained in this volume cover all the areas of current interest in the economics of industrial organization. These include contestability theory, predatory pricing, strategic commitment, product differentiation, product compatibility, consumer information, research, and innovation.