Regulation has become a central aspect of contemporary governance as a result of public management reforms over recent decades. Yet, for all its ubiquity, the ideas of regulation have become increasingly contested. Key failures in the regulation of areas such as financial markets, nuclear power and food safety have revealed limitations in strategies which were once praised as offering superior problem-solving solutions. This major new text introduces the issues which affect the design and operation of regulatory regimes, and assesses the different regulatory strategies which can be used to deal with real-world challenges. In doing so, it examines the most important areas in regulatory policy and reform, including rule-making and enforcement, better regulation, infrastructure regulation, international regulation and risk regulation. Throughout the book, Martin Lodge and Kai Wegrich discuss a range of hypothetical and real-world examples to illustrate key issues, options and trade-offs, and to encourage readers to think critically and creatively about the regulatory options which are available. Drawing on the most up-to-date research, this text provides a clear and useful toolkit for thinking analytically about regulation.