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The Effect of Regulatory Announcements on the Cost of Equity Capital of British Telecom

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  • Antonios Antoniou
  • Gioia M. Pescetto

Abstract

This paper examines the impact of regulatory announcements which affect competition, pricing policy and the supply of services in the telecommunications industry on British Telecom's (BT) systematic risk, as measured by the beta coefficient of a market model. Changes in investors' perception of a company's systematic risk will of course also change its cost of equity capital. Since BT's beta coefficient is found to be unstable over the estimation period, the market model is estimated using a time‐varying parameter model. The results suggest that announcements which allow the price of BT's services to increase and announcements affecting its supply of services are likely to have an impact on BT's cost of equity capital, since they affect the investor's perception of BT's systematic risk. However, our analysis does not detect any effect from the other types of announcements tested. Further examination of the individual announcements included in the groups reveals that, within the non‐significant groups, many individual announcements are significant, but they affect beta in opposite directions and thus no prediction can be made on the sign of their aggregated impact. These findings suggest that when one company dominates the industry, such as in the case of the UK telecommunications industry, the actions of the regulator do not always have the expected effect and problems of regulatory capture are likely to be present.

Suggested Citation

  • Antonios Antoniou & Gioia M. Pescetto, 1997. "The Effect of Regulatory Announcements on the Cost of Equity Capital of British Telecom," Journal of Business Finance & Accounting, Wiley Blackwell, vol. 24(1), pages 1-26, January.
  • Handle: RePEc:bla:jbfnac:v:24:y:1997:i:1:p:1-26
    DOI: 10.1111/1468-5957.00092
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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. Stefano Paleari & Renato Redondi, 2005. "Regulation Effects on Company Beta Components," Bulletin of Economic Research, Wiley Blackwell, vol. 57(4), pages 317-346, October.
    3. Huy Nguyen Anh Pham & Vikash Ramiah & Imad Moosa, 2020. "The effects of environmental regulation on the stock market: the French experience," Accounting and Finance, Accounting and Finance Association of Australia and New Zealand, vol. 60(4), pages 3279-3304, December.
    4. Gioia Pescetto, 2007. "Regulation and systematic risk: the case of the water industry in England and Wales," Applied Financial Economics, Taylor & Francis Journals, vol. 18(1), pages 61-73.
    5. Buckland, Roger & Fraser, Patricia, 2002. "The scale and patterns of abnormal returns to equity investment in UK electricity distribution," Global Finance Journal, Elsevier, vol. 13(1), pages 39-62.
    6. Chalmeau, Olivier, 2013. "Determinants of European telecommunication operators systematic risk," 24th European Regional ITS Conference, Florence 2013 88495, International Telecommunications Society (ITS).
    7. Ouidad Yousfi & Nadia Loukil, 2024. "Environmental laws in France: What are the effects of the Grenelle laws on firms?," European Journal of Law and Economics, Springer, vol. 57(3), pages 347-389, June.
    8. Hoang, Trang Cam & Pham, Huy & Ramiah, Vikash & Moosa, Imad & Le, Danh Vinh, 2020. "The effects of information disclosure regulation on stock markets: Evidence from Vietnam," Research in International Business and Finance, Elsevier, vol. 51(C).

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