This thoroughly updated and revised edition of a popular and authoritative reference work introduces the reader to the major concepts and leading contributors in the field of law and economics. The Companion features accessible, informative and provocative entries on all the significant issues, and breaks new ground by bringing together widely dispersed yet theoretically congruent ideas. Following a comprehensive introduction by the editor, the renowned contributors look in detail at several critical areas including: • fundamentals of the law and economics approach • private law and economics • public law and economics • labor law and economics • regulation, taxation and public enterprise • dispute resolution • different sources of the law • economic analysis of a legal problem • classical authors in law and economics.