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Estimating the Volatility of Electricity Prices: The Case of the England and Wales Wholesale Electricity Market

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  • Sherzod N. Tashpulatov

Abstract

Price fluctuations that partially comove with demand are a specific feature inherent to liberalized electricity markets. The regulatory authority in Great Britain, however, believed that sometimes electricity prices were significantly higher than what was expected and, therefore, introduced price-cap regulation and divestment series. In this study, I analyze how the introduced institutional changes and regulatory reforms affected the dynamics of daily electricity prices in the England and Wales wholesale electricity market during 1990-2001. The research finds that the introduction of price-cap regulation did achieve the goal of lowering the price level at the cost of higher price volatility. Later, the first series of divestments is found to be successful in lowering price volatility, which however happens at the cost of a higher price level. Finally, the study also documents that the second series of divestment was more successful in lowering both the price level and volatility.

Suggested Citation

  • Sherzod N. Tashpulatov, 2011. "Estimating the Volatility of Electricity Prices: The Case of the England and Wales Wholesale Electricity Market," CERGE-EI Working Papers wp439, The Center for Economic Research and Graduate Education - Economics Institute, Prague.
  • Handle: RePEc:cer:papers:wp439
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    References listed on IDEAS

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    1. Koopman, Siem Jan & Ooms, Marius & Carnero, M. Angeles, 2007. "Periodic Seasonal Reg-ARFIMAGARCH Models for Daily Electricity Spot Prices," Journal of the American Statistical Association, American Statistical Association, vol. 102, pages 16-27, March.
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    Citations

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    Cited by:

    1. Tashpulatov, Sherzod N., 2015. "Analysis of electricity industry liberalization in Great Britain: How did the bidding behavior of electricity producers change?," Utilities Policy, Elsevier, vol. 36(C), pages 24-34.
    2. Lízal, Lubomír M. & Tashpulatov, Sherzod N., 2014. "Do producers apply a capacity cutting strategy to increase prices? The case of the England and Wales electricity market," Energy Economics, Elsevier, vol. 43(C), pages 114-124.
    3. Wierzbowski, Michal & Filipiak, Izabela, 2017. "Enhanced operational reserve as a tool for development of optimal energy mix," Energy Policy, Elsevier, vol. 102(C), pages 602-615.
    4. Bobinaite, Viktorija & Juozapaviciene, Aldona & Staniewski, Marcin & Szczepankowski, Piotr, 2013. "Comparative analysis of features of Polish and Lithuanian Day-ahead electricity market prices," Energy Policy, Elsevier, vol. 63(C), pages 181-196.
    5. Ella Broos & Bernhard Dachs & Martina Dünser & Doris Hanzl-Weiss & Kristof Mertens & Doris Schartinger & Robert Stehrer & Valentijn Vanoeteren, 2016. "EU Wholesale Trade: Analysis of the Sector and Value Chains," wiiw Research Reports 415, The Vienna Institute for International Economic Studies, wiiw.
    6. repec:eee:appene:v:212:y:2018:i:c:p:244-264 is not listed on IDEAS

    More about this item

    Keywords

    electricity prices; seasonality; Fourier transform; conditional volatility; regulation.;

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • L50 - Industrial Organization - - Regulation and Industrial Policy - - - General
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities

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