A dynamic and competitive environment, underpinned by competition law policy, is an essential characteristic of successful market economies. To satisfy the growing demand for information on current approaches and practices in competition law policy, the project 'Framework for the Design and Implementation of Competition Law-Policy' was initiated by the World Bank, with participation by OECD. This ensuing volume reflects the main issues that arise in design and implementation of competition law and policy in order to assist countries in developing an approach that suits their own needs and conditions. The views articulated in this publication suggest that the administration and enforcement of competition law policy should assign the greatest importance to fostering economic efficiency and consumer welfare.