During the Summer of 2000, wholesale electricity prices in California were nearly 500% higher than they were during the same months in 1998 or 1999. This price explosion was unexpected and has called into question whether electricity restructuring will bring the benefits of competition promised to consumers. The purpose of this paper is to examine the factors that explain this increase in wholesale electricity prices. We simulate competitive benchmark prices for Summer of 2000 taking account of all relevant supply and demand factors --- gas prices, demand, imports from other states, and emission permit prices. We then compare the simulated competitive benchmark prices with the actual prices observed. We find that there is a large gap between our benchmark competitive prices and observed prices, suggesting that the prices observed during summer 2000 reflect, in part, the exercise of market power by suppliers. We then proceed to examine supplier behavior during high-price hours. We find evidence that suppliers withheld supply from the market that would have been profitable for price-taking firms to sell at the market price.
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Ellerman,A. Denny & Joskow,Paul L. & Schmalensee,Richard & Montero,Juan-Pablo & Bailey Elizabeth M., 2005.
"Markets for Clean Air,"
Cambridge Books,
Cambridge University Press, number 9780521023894, February.
Other versions:
Ellerman,A. Denny & Joskow,Paul L. & Schmalensee,Richard & Montero,Juan-Pablo & Bailey Elizabeth M., 2000.
"Markets for Clean Air,"
Cambridge Books,
Cambridge University Press, number 9780521660839, February.
Cited by: (explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)
John McMillan, 2004.
"Using Markets to Help Solve Public Problems,"
NBER Chapters,
in: Governance, Regulation, and Privatization in the Asia-Pacific Region, NBER East Asia Seminar on Economics, Volume 12, pages 73-92
National Bureau of Economic Research, Inc.
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