'Regulatory policy debates often fail to serve a constructive role. Advocates of risk and environmental regulation maintain that only with zero risk will we be safe. Economic critics seek to impose cost-benefit tests on these policies that many believe ignore the distinctive character of safety and the environment. In Risk and Reason, Cass Sunstein eliminates the impasse in the regulatory policy debate with a balanced policy perspective that recognizes the legitimacy of these competing concerns. Sunstein's carefully crafted analysis shows how the limits on society's resources can be reconciled with a vigorous effort to protect citizens and the environment.' W. Kip Viscusi, Harvard Law School 'Cass Sunstein is an outstanding scholar and I have been vastly impressed by almost everything I have read of his. This work explains and justifies the increasing use of cost-benefit analysis in American regulatory contexts. It reveals how the technique, when suitably adapted, can counteract 'irrationalities' in the perception of risks. I appreciate Sunstein's clarity of expression and fluidity of style; and he is able to draw on empirical and other studies while remaining reader-friendly in his approach.' Anthony Ogus, University of Manchester 'Professor Sunstein has contributed a masterly and multifaceted analysis of government policy towards the protection of the population from risks. The central theme, the use of rational methods, mainly cost-benefit analysis, but also more market-based forms of regulation, is analyzed from an extraordinary variety of viewpoints. The author has drawn, with deep knowledge and originality, on recent developments in cognitive psychology and in legal doctrine to complement rationalistic and economic viewpoints.' Kenneth J. Arrow, Stanford University 'In his fine book Risk and Reason, Cass R. Sunstein offers a wide-ranging analysis of the problem of managing environmental health risks.' Science 'Sunstein offers a sophisticated argument as to how we should reason about risk through cost-benefit analysis, and how this reasoning can improve risk regulation. This book is worth reading, both because of its comprehensive scholarship and because it exemplifies a particular approach to law and economics.' Journal of Law and Society