The unprecedented expansion of administrative law over the last two and a half decades has inspired a rich literature. This book is designed to meet some of the difficulties raised by the diversity of the literature. It offers a collection of essays on important and often contentious aspects of administrative law. The individual contributions, which are informed by a wide variety of theoretical perspectives, are drawn together by certain common the constitutional role of judicial review, its efficacy as a mechanism for the regulation of government decision-making, and the scope and impact of alternative mechanisms.