This series has been created to provide research based analysis and discussion of the appropriate role for economic thinking in the formulation of competition law and policy. The books in the series will move beyond studies of the traditional role of economics - that of helping to define markets and assess market power - to explore the extent to which economic thinking can play a role in the formulation of legal norms, such as abuse of a dominant position, restriction of competition and substantial impediments to or lessening of competition. This in many ways is the new horizon of competition law policy. US antitrust policy, influenced in its formative years by the Chicago School, has already experienced an expansion of the role of economic thinking in its competition rules. Now the EU is committed to a greater role for economic thinking in its Block Exemption Regulations and Modernisation package as well as possibly in its reform of Article 82. Yet these developments still raise the issue of the extent to which economics should be adopted in defining the public interest in competition policy and what role economists should play in legal argument. The series will provide a forum for research perspectives that are critical of an unduly-expanded role for economics as well as those that support its greater use.