The Competition Law Dictionary is a project dedicated to competition law worldwide, edited by Professors Deborah Healey (University of New South Wales), Bill Kovacic (George Washington University), Pablo Trevisán (IDC - Instituto de Derecho de la Competencia), and Richard Whish (King’s College London). As the first dictionary of its kind, written entirely by competition law experts, it brings together over 250 definitions essential for a complete understanding of global competition law, economics, and policy. The authors of the definitions come from different backgrounds and include academics, economists, enforcers, practitioners, and in-house counsels. For each term, the reader can find a complete definition by its author, which includes case references and a bibliography. Official definitions, as provided by institutions such as the European Commission or the OECD, are also available. The dictionary is available in free access in electronic version here. It is periodically enriched with definitions received from authors.