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Dynamic Efficiency Estimation: An Application to US Electric Utilities

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Author Info
Supawat Rungsuriyawiboon
Spiro E. Stefanou (CEPA - School of Economics, The University of Queensland)

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Abstract

The static production efficiency model and the dynamic duality model of intertemporal decision making using a parametric approach have been continuously developed but in separate direction. In this study the static shadow cost approach and the dynamic duality model of intertemporal decision making are integrated to formulate theoretical and econometric models of dynamic efficiency with intertemporal cost minimizing firm behavior. The dynamic efficiency model is empirically implemented using a panel data set of 72 U.S. major investor-owned electric utilities using fossil-fuel fired steam electric power generation during the time period of 1986 to 1999. The major results of this study are that most electric utilities in this study underutilized fuel relative to the aggregated labor and maintenance input and they overutilized capital in production. Electric utilities with relatively high technical inefficiency of variable inputs demand in production in states adopting a deregulation plan improve the performance of the utilities. The estimates of the input price elasticities present the substitution possibilities among the inputs. Finally, the results suggest evidence of increasing returns to scale in the production of the electricity industry.

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Paper provided by School of Economics, University of Queensland, Australia in its series CEPA Working Papers Series with number WP052003.

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Date of creation: Jul 2003
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Handle: RePEc:qld:uqcepa:05

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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.:
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  4. Hansen, Lars Peter, 1982. "Large Sample Properties of Generalized Method of Moments Estimators," Econometrica, Econometric Society, vol. 50(4), pages 1029-54, July. [Downloadable!] (restricted)
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  6. Christensen, Laurits R & Greene, William H, 1976. "Economies of Scale in U.S. Electric Power Generation," Journal of Political Economy, University of Chicago Press, vol. 84(4), pages 655-76, August. [Downloadable!] (restricted)
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  14. McLaren, Keith R & Cooper, Russel J, 1980. "Intertemporal Duality: Application to the Theory of the Firm," Econometrica, Econometric Society, vol. 48(7), pages 1755-62, November. [Downloadable!] (restricted)
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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.)

  1. Supawat Rungsuriyawiboon & Chris O’Donnell, 2004. "Curvature-Constrained Estimates of Technical Efficiency and Returns to Scale for U.S. Electric Utilities," CEPA Working Papers Series WP072004, School of Economics, University of Queensland, Australia. [Downloadable!]
  2. Supawat Rungsuriyawiboon & Spyro Stefanou, 2004. "The Dynamics of Efficiency and Productivity Growth in U. S. Electric Utilities," Working Papers 0711, University of Crete, Department of Economics, revised 00 Aug 2006. [Downloadable!]
  3. Supawat Rungsuriyawiboon, 2004. "An Analysis of Cost Structures in the Electricity Generation Industry," CEPA Working Papers Series WP052004, School of Economics, University of Queensland, Australia. [Downloadable!]
  4. Spyro Stefanou, . "A Dynamic Characterization of Efficiency," Working Papers 0712, University of Crete, Department of Economics, revised 00 Oct 2006. [Downloadable!]
  5. Supawat Rungsuriyawiboon & Tim Coelli, 2004. "Regulatory Reform and Economic Performance in US Electricity Generation," CEPA Working Papers Series WP062004, School of Economics, University of Queensland, Australia. [Downloadable!]
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