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Perfomance and Efficiency in Colombia's Power Distribution Sistem: Effects of the 1994 Reform

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  • Carlos Pombo
  • Rodrigo Taborda

Abstract

We asess evolution in perfomance, efficiency and productivity of Colombia's power distribution utilitiesbefore and after the 1994 regulatory reform that introduced electricity market activities for the power sector in 12 distribution companies from 1985 to 2001. Perfomance is evaluated contrasting changes in meanand median by Wilcoxon Rank Sum and Pearson test on financial and other perfomance indicators. Technical efficiency is measured by means of Data Envelopment Analysis (DEA). The nature of the dataset allows the the estimation of Malmquist productivity index and its evolution in time. Results show a recovery after thereform in the mains perfomance indicators of profitability, parcial input productivity, and output. Plantefficiency and productivity increased after de reform, mainly in the largest utilities used as benchmarks inthe DEA efficiency scores measures. Meanwhile, the less efficient power distribution companies did not improve after the reform and were not able to undertake plant restructuring to chatch up in plant efficiency with respectto the Pareto efficient input allocation. Econometric results on DEA efficiency scores suggest a positive effectof policy reform.

Suggested Citation

  • Carlos Pombo & Rodrigo Taborda, 2004. "Perfomance and Efficiency in Colombia's Power Distribution Sistem: Effects of the 1994 Reform," Borradores de Investigación 006942, Universidad del Rosario.
  • Handle: RePEc:col:000091:006942
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    1. PER AGRELL & Peter Bogetoft & Jørgen Tind, 2005. "DEA and Dynamic Yardstick Competition in Scandinavian Electricity Distribution," Journal of Productivity Analysis, Springer, vol. 23(2), pages 173-201, May.
    2. Carlos Pombo & Manuel Ramirez, 2002. "Privatization in Colombia: a plant performance analysis," Borradores de Investigación 003377, Universidad del Rosario.
    3. Assaf, A. George & Barros, Carlos Pestana & Managi, Shunsuke, 2011. "Cost efficiency of Japanese steam power generation companies: A Bayesian comparison of random and fixed frontier models," Applied Energy, Elsevier, vol. 88(4), pages 1441-1446, April.
    4. Barros, Carlos Pestana, 2008. "Efficiency analysis of hydroelectric generating plants: A case study for Portugal," Energy Economics, Elsevier, vol. 30(1), pages 59-75, January.
    5. Greene, William H., 1980. "Maximum likelihood estimation of econometric frontier functions," Journal of Econometrics, Elsevier, vol. 13(1), pages 27-56, May.
    6. Ioannis N. Kessides, 2004. "Reforming Infrastructure : Privatization, Regulation, and Competition," World Bank Publications - Books, The World Bank Group, number 13525.
    7. Sueyoshi, Toshiyuki & Goto, Mika, 2010. "Should the US clean air act include CO2 emission control?: Examination by data envelopment analysis," Energy Policy, Elsevier, vol. 38(10), pages 5902-5911, October.
    8. Lester Hadsell, 2011. "Inefficiency in deregulated wholesale electricity markets: the case of the New England ISO," Applied Economics, Taylor & Francis Journals, vol. 43(5), pages 515-525.
    9. Paul H. Malatesta & Kathryn L. DeWenter, 2001. "State-Owned and Privately Owned Firms: An Empirical Analysis of Profitability, Leverage, and Labor Intensity," American Economic Review, American Economic Association, vol. 91(1), pages 320-334, March.
    10. Megginson, William L & Nash, Robert C & van Randenborgh, Matthias, 1994. "The Financial and Operating Performance of Newly Privatized Firms: An International Empirical Analysis," Journal of Finance, American Finance Association, vol. 49(2), pages 403-452, June.
    11. S P Santos & C A F Amado & J R Rosado, 2011. "Formative evaluation of electricity distribution utilities using data envelopment analysis," Journal of the Operational Research Society, Palgrave Macmillan;The OR Society, vol. 62(7), pages 1298-1319, July.
    12. Bauer, Paul W. & Berger, Allen N. & Ferrier, Gary D. & Humphrey, David B., 1998. "Consistency Conditions for Regulatory Analysis of Financial Institutions: A Comparison of Frontier Efficiency Methods," Journal of Economics and Business, Elsevier, vol. 50(2), pages 85-114, March.
    13. Bagdadioglu, Necmiddin & Waddams Price, Catherine M. & Weyman-Jones, Thomas G., 1996. "Efficiency and ownership in electricity distribution: A non-parametric model of the Turkish experience," Energy Economics, Elsevier, vol. 18(1-2), pages 1-23, April.
    14. Sueyoshi, Toshiyuki & Goto, Mika, 2012. "Efficiency-based rank assessment for electric power industry: A combined use of Data Envelopment Analysis (DEA) and DEA-Discriminant Analysis (DA)," Energy Economics, Elsevier, vol. 34(3), pages 634-644.
    15. Henry Tulkens & Philippe Eeckaut, 2006. "Nonparametric Efficiency, Progress and Regress Measures For Panel Data: Methodological Aspects," Springer Books, in: Parkash Chander & Jacques Drèze & C. Knox Lovell & Jack Mintz (ed.), Public goods, environmental externalities and fiscal competition, chapter 0, pages 395-429, Springer.
    16. Jaffry, Shabbar & Ghulam, Yaseen & Pascoe, Sean & Cox, Joe, 2007. "Regulatory changes and productivity of the banking sector in the Indian sub-continent," Journal of Asian Economics, Elsevier, vol. 18(3), pages 415-438, June.
    17. Magnus Söderberg, 2011. "The Role Of Model Specification In Finding The Influence Of Ownership And Regulatory Regime On Utility Cost: The Case Of Swedish Electricity Distribution," Contemporary Economic Policy, Western Economic Association International, vol. 29(2), pages 178-190, April.
    18. Hjalmarsson, Lennart & Veiderpass, Ann, 1992. " Productivity in Swedish Electricity Retail Distribution," Scandinavian Journal of Economics, Wiley Blackwell, vol. 94(0), pages 193-205, Supplemen.
    19. Sheinbaum, Claudia & Ruíz, Belizza J. & Ozawa, Leticia, 2011. "Energy consumption and related CO2 emissions in five Latin American countries: Changes from 1990 to 2006 and perspectives," Energy, Elsevier, vol. 36(6), pages 3629-3638.
    20. Sueyoshi, Toshiyuki & Goto, Mika, 2011. "Operational synergy in the US electric utility industry under an influence of deregulation policy: A linkage to financial performance and corporate value," Energy Policy, Elsevier, vol. 39(2), pages 699-713, February.
    21. Estache, Antonio & Rodriguez-Pardina, Martin, 1999. "Light and lightning at the end of the public tunnel : reform of the electricity sector in the Southern Cone," Policy Research Working Paper Series 2074, The World Bank.
    22. Zhou, P. & Ang, B.W. & Han, J.Y., 2010. "Total factor carbon emission performance: A Malmquist index analysis," Energy Economics, Elsevier, vol. 32(1), pages 194-201, January.
    23. Rafael La Porta & Florencio López-de-Silanes, 1999. "The Benefits of Privatization: Evidence from Mexico," The Quarterly Journal of Economics, Oxford University Press, vol. 114(4), pages 1193-1242.
    24. Fare, Rolf & Shawna Grosskopf & Mary Norris & Zhongyang Zhang, 1994. "Productivity Growth, Technical Progress, and Efficiency Change in Industrialized Countries," American Economic Review, American Economic Association, vol. 84(1), pages 66-83, March.
    25. Byrnes, Patricia & Grosskopf, Shawna & Hayes, Kathy, 1986. "Efficiency and Ownership: Further Evidence," The Review of Economics and Statistics, MIT Press, vol. 68(2), pages 337-341, May.
    26. Chiu, Ching-Ren & Liou, Je-Liang & Wu, Pei-Ing & Fang, Chen-Ling, 2012. "Decomposition of the environmental inefficiency of the meta-frontier with undesirable output," Energy Economics, Elsevier, vol. 34(5), pages 1392-1399.
    27. Larsen, Erik R. & Dyner, Isaac & Bedoya V., Leonardo & Franco, Carlos Jaime, 2004. "Lessons from deregulation in Colombia: successes, failures and the way ahead," Energy Policy, Elsevier, vol. 32(15), pages 1767-1780, October.
    28. Andrei Shleifer, 1985. "A Theory of Yardstick Competition," RAND Journal of Economics, The RAND Corporation, vol. 16(3), pages 319-327, Autumn.
    29. Garcia, Alfredo & Arbelaez, Luis E., 2002. "Market power analysis for the Colombian electricity market," Energy Economics, Elsevier, vol. 24(3), pages 217-229, May.
    30. A. Charnes & W. W. Cooper & E. Rhodes, 1981. "Evaluating Program and Managerial Efficiency: An Application of Data Envelopment Analysis to Program Follow Through," Management Science, INFORMS, vol. 27(6), pages 668-697, June.
    31. Nakano, Makiko & Managi, Shunsuke, 2008. "Regulatory reforms and productivity: An empirical analysis of the Japanese electricity industry," Energy Policy, Elsevier, vol. 36(1), pages 201-209, January.
    32. Peter O. Steiner, 1957. "Peak Loads and Efficient Pricing," The Quarterly Journal of Economics, Oxford University Press, vol. 71(4), pages 585-610.
    33. Taniguchi, Mariko & Kaneko, Shinji, 2009. "Operational performance of the Bangladesh rural electrification program and its determinants with a focus on political interference," Energy Policy, Elsevier, vol. 37(6), pages 2433-2439, June.
    34. Mette Asmild & Joseph Paradi & Vanita Aggarwall & Claire Schaffnit, 2004. "Combining DEA Window Analysis with the Malmquist Index Approach in a Study of the Canadian Banking Industry," Journal of Productivity Analysis, Springer, vol. 21(1), pages 67-89, January.
    35. Caves, Douglas W & Christensen, Laurits R & Diewert, W Erwin, 1982. "The Economic Theory of Index Numbers and the Measurement of Input, Output, and Productivity," Econometrica, Econometric Society, vol. 50(6), pages 1393-1414, November.
    36. Pombo, Carlos, 2001. "Regulatory reform in Colombia's electric utilities," The Quarterly Review of Economics and Finance, Elsevier, vol. 41(5), pages 683-711.
    37. Alexander Cotte Poveda, 2012. "Estimating Effectiveness of the Control of Violence and Socioeconomic Development in Colombia: An Application of Dynamic Data Envelopment Analysis and Data Panel Approach," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 105(3), pages 343-366, February.
    38. Pérez-Reyes, Raúl & Tovar, Beatriz, 2010. "Explaining the inefficiency of electrical distribution companies: Peruvian firms," Energy Economics, Elsevier, vol. 32(5), pages 1175-1181, September.
    39. Kopsakangas-Savolainen, Maria & Svento, Rauli, 2008. "Estimation of cost-effectiveness of the Finnish electricity distribution utilities," Energy Economics, Elsevier, vol. 30(2), pages 212-229, March.
    40. Seiford, Lawrence M. & Thrall, Robert M., 1990. "Recent developments in DEA : The mathematical programming approach to frontier analysis," Journal of Econometrics, Elsevier, vol. 46(1-2), pages 7-38.
    41. Sueyoshi, Toshiyuki & Goto, Mika, 2012. "Returns to scale and damages to scale on U.S. fossil fuel power plants: Radial and non-radial approaches for DEA environmental assessment," Energy Economics, Elsevier, vol. 34(6), pages 2240-2259.
    42. Filippini, Massimo & Hrovatin, Nevenka & Zoric, Jelena, 2004. "Efficiency and regulation of the Slovenian electricity distribution companies," Energy Policy, Elsevier, vol. 32(3), pages 335-344, February.
    43. Jahangoshai Rezaee, Mustafa & Moini, Alireza & Makui, Ahmad, 2012. "Operational and non-operational performance evaluation of thermal power plants in Iran: A game theory approach," Energy, Elsevier, vol. 38(1), pages 96-103.
    44. Zhou, P. & Ang, B.W. & Poh, K.L., 2008. "A survey of data envelopment analysis in energy and environmental studies," European Journal of Operational Research, Elsevier, vol. 189(1), pages 1-18, August.
    45. Sueyoshi, Toshiyuki & Goto, Mika & Ueno, Takahiro, 2010. "Performance analysis of US coal-fired power plants by measuring three DEA efficiencies," Energy Policy, Elsevier, vol. 38(4), pages 1675-1688, April.
    46. Pérez-Reyes, Raúl & Tovar, Beatriz, 2009. "Measuring efficiency and productivity change (PTF) in the Peruvian electricity distribution companies after reforms," Energy Policy, Elsevier, vol. 37(6), pages 2249-2261, June.
    47. Arocena, Pablo, 2008. "Cost and quality gains from diversification and vertical integration in the electricity industry: A DEA approach," Energy Economics, Elsevier, vol. 30(1), pages 39-58, January.
    48. Førsund, Finn R. & Kittelsen, Sverre A. C., 1998. "Productivity development of Norwegian electricity distribution utilities," Resource and Energy Economics, Elsevier, vol. 20(3), pages 207-224, September.
    49. Chang, Dong-Shang & Chen, Yi-Tui & Chen, Wen-Den, 2009. "The exogenous factors affecting the cost efficiency of power generation," Energy Policy, Elsevier, vol. 37(12), pages 5540-5545, December.
    50. Cubbin, John & Tzanidakis, George, 1998. "Regression versus data envelopment analysis for efficiency measurement: an application to the England and Wales regulated water industry," Utilities Policy, Elsevier, vol. 7(2), pages 75-85, June.
    51. Zhou, P. & Ang, B.W. & Poh, K.L., 2008. "Measuring environmental performance under different environmental DEA technologies," Energy Economics, Elsevier, vol. 30(1), pages 1-14, January.
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    More about this item

    Keywords

    Electricity distribution; productive efficiency; power sector Colombia; Malmquist productivity index;
    All these keywords.

    JEL classification:

    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities
    • Q49 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Other

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