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Productivity growth and deregulation of Japanese electricity distribution

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  • Goto, Mika
  • Sueyoshi, Toshiyuki

Abstract

Deregulation of Japanese electric power industry began in 1995. After the amendment of Electricity Utility Industry Law in 1995, competition was partially introduced in a generation sector and retail competition started from 2000. Eligibility to choose suppliers was gradually extended from larger to smaller customers. As of 2008, almost all customers except households can choose their electricity suppliers. Based upon both previous implementation result of competition policy and review on their achievement, Japanese government will begin new policy debate in 2013 to assess further retail competition which includes household customers. To prepare for policy suggestion on the future electric power industry, this study examines the cost structure of Japanese electricity distribution. For the purpose, we estimate a multi-product translog cost function of Japanese electricity distribution from 1983 to 2003. Using the estimated cost function, we calculate several economic measures such as productivity growth, technical change and economies of scale and scope. The empirical results of this study indicate the improvement in productivity growth after deregulation.

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  • Goto, Mika & Sueyoshi, Toshiyuki, 2009. "Productivity growth and deregulation of Japanese electricity distribution," Energy Policy, Elsevier, vol. 37(8), pages 3130-3138, August.
    • Handle: RePEc:eee:enepol:v:37:y:2009:i:8:p:3130-3138
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    16. Yanrui Wu, 2012. "Electricity Market Integration Global Trends and Implications for the EAS Region," Economics Discussion / Working Papers 12-19, The University of Western Australia, Department of Economics.
    17. Jamasb,Tooraj & Nepal,Rabindra & Timilsina,Govinda R., 2015. "A quarter century effort yet to come of age : a survey of power sector reforms in developing countries," Policy Research Working Paper Series 7330, The World Bank.
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