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Political and Regulatory Risk: Beta Sensitivity in U.K. Electricity Distribution

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  • Buckland, Roger
  • Fraser, Patricia

Abstract

To establish price caps, regulators must determine appropriate returns for utilities' capital employed. This paper uses the techniques of the Kalman Filter to estimate daily betas for the U.K.'s regional electricity companies in the period from privatization to end-1998. The paper demonstrates that utilities' risk is time-variant, and establishes significant political and regulatory influences in the systematic risk faced by shareholders. It finds beta to be mean reverting, with little evidence of cyclical variation across the regulatory review cycle. The paper confirms the prevalence of significant excess returns in U.K. privatized electricity distribution and suggests that over-estimation of the systematic risk faced by investors may imply further excess returns in the next regulatory review period. Copyright 2001 by Kluwer Academic Publishers

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  • Buckland, Roger & Fraser, Patricia, 2001. "Political and Regulatory Risk: Beta Sensitivity in U.K. Electricity Distribution," Journal of Regulatory Economics, Springer, vol. 19(1), pages 5-25, January.
    • Handle: RePEc:kap:regeco:v:19:y:2001:i:1:p:5-25
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    Cited by:

    1. Roger Buckland & Julian Williams & Janice Beecher, 2015. "Risk and regulation in water utilities: a cross-country comparison of evidence from the CAPM," Journal of Regulatory Economics, Springer, vol. 47(2), pages 117-145, April.
    2. Frederic Cherbonnier & Christian Gollier, 2022. "Risk-adjusted Social Discount Rates," The Energy Journal, , vol. 43(4), pages 45-68, May.
    3. Fiocco, Raffaele & Guo, Dongyu, 2020. "Regulatory risk, vertical integration, and upstream investment," European Economic Review, Elsevier, vol. 128(C).
    4. Spanjer, Aldo R., 2009. "Regulatory intervention on the dynamic European gas market--neoclassical economics or transaction cost economics?," Energy Policy, Elsevier, vol. 37(8), pages 3250-3258, August.
    5. Stefano Paleari & Renato Redondi, 2005. "Regulation Effects on Company Beta Components," Bulletin of Economic Research, Wiley Blackwell, vol. 57(4), pages 317-346, October.
    6. Burkhard Pedell, 2007. "Kapitalmarktbasierte Ermittlung des Kapitalkostensatzes für Zwecke der Entgeltregulierung," Metrika: International Journal for Theoretical and Applied Statistics, Springer, vol. 18(1), pages 35-60, April.
    7. Frédéric Cherbonnier & Christian Gollier, 2022. "Risk-adjusted Social Discount Rates," Post-Print hal-04012977, HAL.

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