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Scale economies in electricity distribution: a semiparametric analysis

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Author Info
A. Yatchew (Department of Economics, University of Toronto, 150 St George Street, Toronto, Canada M5S 3G7)

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Abstract

We estimate the costs of distributing electricity using data on municipal electric utilities in Ontario, Canada for the period 1993-5. The data reveal substantial evidence of increasing returns to scale with minimum efficient scale being achieved by firms with about 20,000 customers. Larger firms exhibit constant or decreasing returns. Utilities which deliver additional services (such as water|sewage), have significantly lower costs, indicating the presence of economies of scope. Our basic specifications comprise semiparametric variants of the translog cost function where output enters non-parametrically and remaining variables (including their interactions with output) are parametric. We rely upon non-parametric differencing techniques and extend a previous differencing test of equality of non-parametric regression functions to a panel data setting. Copyright © 2000 John Wiley & Sons, Ltd.Journal: Journal of Applied Econometrics

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Article provided by John Wiley & Sons, Ltd. in its journal Journal of Applied Econometrics.

Volume (Year): 15 (2000)
Issue (Month): 2 ()
Pages: 187-210
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Handle: RePEc:jae:japmet:v:15:y:2000:i:2:p:187-210

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  1. Dennis Cox & Eunmee Koh, 1989. "A smoothing spline based test of model adequacy in polynomial regression," Annals of the Institute of Statistical Mathematics, Springer, vol. 41(2), pages 383-400, June. [Downloadable!] (restricted)
  2. Yatchew, A., 1999. "An elementary nonparametric differencing test of equality of regression functions," Economics Letters, Elsevier, vol. 62(3), pages 271-278, March. [Downloadable!] (restricted)
  3. Adonis Yatchew, 1998. "Nonparametric Regression Techniques in Economics," Journal of Economic Literature, American Economic Association, vol. 36(2), pages 669-721, June. [Downloadable!] (restricted)
  4. Kjell G. Salvanes & Sigve Tjøtta, 1998. "A Test for Natural Monopoly with Application to Norwegian Electricity Distribution," Review of Industrial Organization, Springer, vol. 13(6), pages 669-685, December. [Downloadable!]
  5. Ahn, Hyungtaik & Powell, James L., 1993. "Semiparametric estimation of censored selection models with a nonparametric selection mechanism," Journal of Econometrics, Elsevier, vol. 58(1-2), pages 3-29, July. [Downloadable!] (restricted)
  6. Hjalmarsson, Lennart & Veiderpass, Ann, 1992. " Productivity in Swedish Electricity Retail Distribution," Scandinavian Journal of Economics, Blackwell Publishing, vol. 94(0), pages S193-205, Supplemen.
  7. Baltagi, Badi H. & Hidalgo, Javier & Li, Qi, 1996. "A nonparametric test for poolability using panel data," Journal of Econometrics, Elsevier, vol. 75(2), pages 345-367, December. [Downloadable!] (restricted)
  8. Leland Gerson Neuberg, 1977. "Two Issues in the Municipal Ownership of Electric Power Distribution," Bell Journal of Economics, The RAND Corporation, vol. 8(1), pages 303-323, Spring. [Downloadable!] (restricted)
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(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. John DiNardo & Justin L. Tobias, 2001. "Nonparametric Density and Regression Estimation," Journal of Economic Perspectives, American Economic Association, vol. 15(4), pages 11-28, Fall. [Downloadable!] (restricted)
    Other versions:
  2. Jamasb, T. & Neuhoff, K. & Newbery, D. & Pollitt, M., 2005. "Long-term Framework for Electricity Distribution Access Charges," Cambridge Working Papers in Economics 0551, Faculty of Economics, University of Cambridge. [Downloadable!]
  3. Nillesen, P. & Pollitt, M.G., 2008. "Ownership unbundling in electricity distribution: empircal evidence from New Zealand," Cambridge Working Papers in Economics 0836, Faculty of Economics, University of Cambridge. [Downloadable!]
  4. Livanis, Grigorios T. & Salois, Matthew J. & Moss, Charles B, 2009. "A Nonparametric Kernel Representation of the Agricultural Production Function: Implications for Economic Measures of Technology," 83rd Annual Conference, March 30-April 1, 2009, Dublin, Ireland 51063, Agricultural Economics Society. [Downloadable!]
  5. Jamasb, T. & Nillesen, P. & Pollitt, M., 2003. "Strategic Behaviour under Regulation Benchmarking," Cambridge Working Papers in Economics 0312, Faculty of Economics, University of Cambridge. [Downloadable!]
  6. John E. Kwoka, 2005. "Electric power distribution: economies of scale, mergers, and restructuring," Applied Economics, Taylor and Francis Journals, vol. 37(20), pages 2373-2386, November. [Downloadable!] (restricted)
  7. Manuel Frondel & Christoph M. Schmidt, 2006. "On the Restrictiveness of Separability: The Significance of Energy in German Manufacturing," RWI Discussion Papers 0038, Rheinisch-Westfälisches Institut für Wirtschaftsforschung. [Downloadable!]
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