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Capital asset pricing model, beta stability, and the pricing puzzle of electricity transmission in Brazil

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  • Kayo, Eduardo K.
  • Martelanc, Roy
  • Brunaldi, Eduardo O.
  • da Silva, Walter E.

Abstract

This paper seeks to analyse and propose alternative procedures to estimate the cost of equity through the capital asset pricing model (CAPM) in the context of electricity transmission in Brazil. Under the assumption that a stable beta is important for regulatory purposes since it provides institutional security for investors, as well as fair tariffs for consumers, we test different options to find the set of parameters that provides the most stable beta for the transmission sector. This paper is prescriptive in nature and attempts to offer alternative options for the cost of equity estimation, without changing the theoretical framework (i.e., CAPM) proposed by the Brazilian regulator. To pursue our aim, we test beta stability by modifying three CAPM elements: the risk asset, the proxy for market returns, and the length of the estimation window. By applying robust structural break tests, we show that the desirable beta stability may be reached with the use of a Brazilian pure-play global beta estimated with an 11-year estimation window.

Suggested Citation

  • Kayo, Eduardo K. & Martelanc, Roy & Brunaldi, Eduardo O. & da Silva, Walter E., 2020. "Capital asset pricing model, beta stability, and the pricing puzzle of electricity transmission in Brazil," Energy Policy, Elsevier, vol. 142(C).
    • Handle: RePEc:eee:enepol:v:142:y:2020:i:c:s0301421520302330
    DOI: 10.1016/j.enpol.2020.111485
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    1. Theobald, Michael, 1981. "Beta Stationarity and Estimation Period: Some Analytical Results," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 16(5), pages 747-757, December.
    2. Fuller, Russell J & Kerr, Halbert S, 1981. "Estimating the Divisional Cost of Capital: An Analysis of the Pure-Play Technique," Journal of Finance, American Finance Association, vol. 36(5), pages 997-1009, December.
    3. Philipp Krüger & Augustin Landier & David Thesmar, 2015. "The WACC Fallacy: The Real Effects of Using a Unique Discount Rate," Journal of Finance, American Finance Association, vol. 70(3), pages 1253-1285, June.
    4. Nicolaas Groenewald & Patricia Fraser, 2000. "Forecasting Beta: How Well Does the 'Five-Year Rule of Thumb' Do?," Journal of Business Finance & Accounting, Wiley Blackwell, vol. 27(7&8), pages 953-982.
    5. Roll, Richard, 1977. "A critique of the asset pricing theory's tests Part I: On past and potential testability of the theory," Journal of Financial Economics, Elsevier, vol. 4(2), pages 129-176, March.
    6. Tagliapietra, Simone & Zachmann, Georg & Fredriksson, Gustav, 2019. "Estimating the cost of capital for wind energy investments in Turkey," Energy Policy, Elsevier, vol. 131(C), pages 295-301.
    7. Rode, David C. & Fischbeck, Paul S., 2019. "Regulated equity returns: A puzzle," Energy Policy, Elsevier, vol. 133(C).
    8. Agmon, Tamir, 1973. "Country Risk: The Significance of the Country Factor for Share-Price Movements in the United Kingdom, Germany, and Japan," The Journal of Business, University of Chicago Press, vol. 46(1), pages 24-32, January.
    9. Amihud, Yakov, 2002. "Illiquidity and stock returns: cross-section and time-series effects," Journal of Financial Markets, Elsevier, vol. 5(1), pages 31-56, January.
    10. Fama, Eugene F. & French, Kenneth R., 2015. "A five-factor asset pricing model," Journal of Financial Economics, Elsevier, vol. 116(1), pages 1-22.
    11. Fama, Eugene F. & French, Kenneth R., 1993. "Common risk factors in the returns on stocks and bonds," Journal of Financial Economics, Elsevier, vol. 33(1), pages 3-56, February.
    12. William F. Sharpe, 1964. "Capital Asset Prices: A Theory Of Market Equilibrium Under Conditions Of Risk," Journal of Finance, American Finance Association, vol. 19(3), pages 425-442, September.
    13. René M. Stulz, 1999. "Golbalization, Corporate Finance, And The Cost Of Capital," Journal of Applied Corporate Finance, Morgan Stanley, vol. 12(3), pages 8-25, September.
    14. Rocha, Katia & Camacho, Fernando & Braganca, Gabriel, 2007. "Return on capital of Brazilian electricity distributors: A comparative analysis," Energy Policy, Elsevier, vol. 35(4), pages 2526-2537, April.
    15. Levi, Yaron & Welch, Ivo, 2017. "Best Practice for Cost-of-Capital Estimates," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 52(2), pages 427-463, April.
    16. Donovan, Charles & Nuñez, Laura, 2012. "Figuring what’s fair: The cost of equity capital for renewable energy in emerging markets," Energy Policy, Elsevier, vol. 40(C), pages 49-58.
    17. Jaime Sabal, 2004. "The Discount Rate in Emerging Markets: A Guide," Journal of Applied Corporate Finance, Morgan Stanley, vol. 16(2‐3), pages 155-166, March.
    18. Black, Fischer, 1972. "Capital Market Equilibrium with Restricted Borrowing," The Journal of Business, University of Chicago Press, vol. 45(3), pages 444-455, July.
    19. Bey, Roger P., 1983. "Market Model Stationarity of Individual Public Utilities," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 18(1), pages 67-85, March.
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    2. Singh, Kewal & Singh, Anoop & Prakash, Puneet, 2022. "Estimating the cost of equity for the regulated energy and infrastructure sectors in India," Utilities Policy, Elsevier, vol. 74(C).

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