Environmental Regulation in Oligopoly Markets: A Study of Electricity Restructuring

In an oligopoly market subject to environmental regulation through tradable pollution permits, polluters' output decisions affect the price of polluting. With a pollution tax, this feedback effect is absent. In a permit regime, I show that the feedback effect increases strategic firms' production and improves welfare. I empirically test the environmental implications of oligopoly behavior in the Pennsylvania, New Jersey, and Maryland electricity market. Air pollution fell substantially during 1999, the year in which both electricity restructuring and a tradable permit system took effect. Surprisingly, I show that 33-42 percent of the emissions reductions resulted from strategic behavior in the electricity market. Simulations suggest that welfare loss would have been seven percent greater under a tax than with tradable permits.

[1]  Catherine Wolfram.  Strategic Bidding in a Multiunit Auction: An Empirical Analysis of Bids to Supply Electricity in England and Wales , 1998 .

[2]  Dan Levin.  Taxation within Cournot oligopoly , 1985 .

[3]  Sherrill Shaffer,et al.  Optimal linear taxation of polluting oligopolists , 1995 .

[4]  H. Elder,et al.  Exclusionary manipulation of markets for pollution rights , 1989 .

[5]  Alan Krupnick,et al.  Costs and Benefits of Reducing Air Pollutants Related to Acid Rain , 1998 .

[6]  E. Sartzetakis.  Tradeable emission permits regulations in the presence of imperfectly competitive product markets: Welfare implications , 1997 .

[7]  James Bushnell,et al.  A Cournot-Nash Equilibrium Analysis of the New Jersey Electricity Market , 1998 .

[8]  Whitney K. Newey,et al.  Efficient estimation of limited dependent variable models with endogenous explanatory variables , 1987 .

[9]  M. Cropper,et al.  Environmental Economics: A Survey , 1992 .

[10]  Dwight R. Lee.  Efficiency of pollution taxation and market structure , 1975 .

[11]  Dallas Burtraw,et al.  Revenue-Raising versus Other Approaches to Environmental Protection: The Critical Significance of Preexisting Tax Distortions , 1997 .

[12]  J. Bushnell,et al.  An Empirical Assessment of the Competitiveness of the New England Electricity Market , 2002 .

[13]  L. Goulder,et al.  Revenue-Raising vs. Other Approaches to Environmental Protection: The Critical Significance of Pre-Existing Tax Distortions , 1996 .

[14]  N. Hanley,et al.  Environmental Economics: In Theory and Practice , 1996 .

[15]  E. Kahn,et al.  A quantitative analysis of pricing behavior in California's wholesale electricity market during summer 2000 , 2001, 2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262).

[16]  F. Wolak,et al.  The Impact of Market Rules and Market Structure on the Price Determination Process in the England and Wales Electricity Market , 2001 .

[17]  P. Robinson,et al.  ON THE ASYMPTOTIC PROPERTIES OF ESTIMATORS OF MODELS CONTAINING LIMITED DEPENDENT VARIABLES , 1982 .

[18]  Robert N. Stavins,et al.  Transaction Costs and Tradeable Permits , 1995 .

[19]  Catherine D. Wolfram,et al.  Measuring Duopoly Power in the British Electricity Spot Market , 1999 .

[20]  R. Simpson.  Optimal pollution taxation in a Cournot duopoly , 1995 .

[21]  E. Sartzetakis.  Tradeable Emission Permits Regulations in the Presence of Imperfectly Competitive Product Markets: Welfare Implications , 1997 .

[22]  Eftichios S. Sartzetakis,et al.  Raising Rivals' Costs Strategies via Emission Permits Markets , 1997 .

[23]  James Bushnell,et al.  Market Structure and Competition: A Cross-Market Analysis of U.S. Electricity Deregulation , 2004 .

[24]  Frank A. Wolak,et al.  Diagnosing Market Power in California's Deregulated Wholesale Electricity Market , 2000 .

[25]  Redaktionen.  THE REVIEW OF ECONOMIC STUDIES , 1960 .

[26]  A. C. Pigou.  Economics of welfare , 1920 .

[27]  F. Schweppe.  Spot Pricing of Electricity , 1988 .

[28]  A. Jaffe,et al.  Environmental Policy and Technological Change , 2002 .

[29]  Wallace E. Oates,et al.  Effluent fees and market structure , 1984 .

[30]  P. Klemperer,et al.  Supply Function Equilibria in Oligopoly under Uncertainty , 1989 .

[31]  R. Hahn.  Market Power and Transferable Property Rights , 1984 .

[32]  F. Carlsson.  Environmental Taxation and Strategic Commitment in Duopoly Models , 2000 .

[33]  A neglected welfare cost of monopoly—and most other product market distortions , 1997 .

[34]  S. Borenstein,et al.  Measuring Market Inefficiencies in California's Restructured Wholesale Electricity Market , 2002 .

[35]  A. Barnett,et al.  The Pigouvian Tax Rule under Monopoly , 1980 .

[36]  Dallas Burtraw,et al.  Electricity Restructuring: Consequences and Opportunities for the Environment , 2000 .

[37]  M. Weitzman.  Prices vs. Quantities , 1974 .

[38]  J. M. Buchanan,et al.  External Diseconomies, Corrective Taxes, and Market Structure , 1969 .

[39]  Vertical Integration in Restructured Electricity Markets: Measuring Market Efficiency and Firm Conduct , 2003 .