Since 1985, the Member States of the European Union have enacted new national competition laws, or amended their existing competition laws, so that these laws are now all more or less converging upon the EC competition rules as laid down in Articles 81 and 82 of the EC Treaty and in the Concentration Control Regulation 4064/89/EC (as amended by Regulation 1310/97/EC). This is a comprehensive textbook of the Competition Laws of the Member States of the European Union and of Switzerland. It is believed to be the first of its kind to include in one text all aspects of competition law of all countries concerned, i.e. the substantive rules on restrictions of competition and abuse of dominance as well as the rules on concentration control. In respect of both issues, the rules of procedure and enforcement are also set out. In addition, the reader will find a short synopsis per country of the powers of special sectorial regulators (if any) in fields such as telecommunication, energy, broadcasting and public transport.