What is CAC: R.C. Griffin and D.W. Bromley, Agricultural Runoff as a Nonpoint Externality - A Theoretical Development; Gloria E. Helfand, Standards versus Standards - The Effects of Different Pollution Restrictions; David Besanko, Performance versus Design Standards in the Regulation of Pollution. Sensibly Designed CAC: Catherine Kling, Emission Trading versus Rigid Regulations in the Control of Vehicle Emissions; David A. Dana, The New "Contractarian" Paradigm in Environmental Regulation; David L. Greene, Why CAFE worked. Monitoring Costs: Daniel H. Cole and Peter Z. Grossman, When is Command and Control Efficient? Institutions, Technology and the Comparative Efficiency of Alternative Regulatory Regimes for Environmental Protection; Wendy E. Wagner, Symposium - Innovations in Environmental Policy - The Triumph of Technology-Based Standards; Allen Blackman and Winston Harrington, The Use of Economic Incentives in Developing Countries - Lessons from International Experience with Industrial Air Pollution; Ruth Greenspan Bell and Clifford Russell, Environmental Policy for Developing Countries; Robert W. Hahn and Robert L. Axtell, Re-evaluating the Relationship Between Transferable Property Rights and Command-and-Control Regulation. Non-Uniform Conditions: Wallace E. Oates, Paul R. Portney and Albert M. McGartland, The Net Benefits of Incentive-Based Regulation - A Case Study of Environmental Standard Setting; Susan Rose-Ackerman, Effluent Charges - A Critique; Raul E. O'Ryan, Cost-Effective Policies to Improve Urban Air Quality in Santiago, Chile. Uncertainty: Martin L. Weitzman, Prices versus Quantities; Charles D. Kolstad, Thomas S. Ulen and Gary V. Johnson, Ex Post Liability for Harm versus Ex Ante Safety Regulation - Substitutes or Complements? Imperfect Competition and Information: David P. Baron, Regulation of Prices and Pollution Under Incomplete Information; David A. Malueg, Welfare Consequences of Emission Credit Trading Programs; Robert W. Hahn, Market Power and Transferable Property Rights. Non-Economic Factors - Political Economy and Philosophy: James M. Buchanan and Gordon Tullock, Polluters' Profits and Political Response - Direct Controls versus Taxes; Philip R.P. Coelho, Polluters' Profits and Political Response - Direct Control versus Taxes - Comment; Robert S. Main and Charles W. Baird, Polluters' Profits and Political Response - Direct Control versus Taxes - Comment; Gary W. Yohe, Polluters' Profits and Political Response - Direct Control versus Taxes - Comment; James M. Buchanan and Gordon Tullock, Polluters' Profits and Political Response - Direct Controls versus Taxes - Reply; Michael T. Maloney and Robert E. McCormick, A Positive Theory of Environmental Quality Regulation; Steven Kelman, Economists and the Environmental Muddle; Amihai Glazer and Charles Lave, Regulating by Prices and by Command; Thomas W. Merrill, Explaining Market Mechanisms.