A general formula for the WACC: A correction
AbstractThis paper corrects some of the equations of Farber, Gillet and Szafarz (2006). The WACC is a discount rate widely used in corporate finance. However, correctly calculating the WACC involves properly calculating the value of tax shields, and the value of tax shields depends on the company's debt policy. Many authors [e.g. Inselbag and Kaufold (1997), Booth (2002), Cooper and Nyborg (2006), Farber, Gillet and Szafarz (2006)] have stated that debt policy can only be implemented by maintaining a fixed market-value debt ratio (Miles-Ezzell's assumption) or a fixed dollar amount of debt (Modigliani-Miller's assumption).
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Bibliographic InfoPaper provided by IESE Business School in its series IESE Research Papers with number D/663.
Length: 7 pages
Date of creation: 16 Dec 2006
Date of revision:
required return to equity; value of tax shields; company valuation; cost of equity;
Find related papers by JEL classification:
- G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
- G31 - Financial Economics - - Corporate Finance and Governance - - - Capital Budgeting; Fixed Investment and Inventory Studies
- G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
This paper has been announced in the following NEP Reports:
- NEP-ALL-2007-02-17 (All new papers)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- André Farber & Roland Gillet & Ariane Szafarz, 2005.
"A general formula for the WACC,"
Working Papers CEB
05-012.RS, ULB -- Universite Libre de Bruxelles.
- Cooper, Ian & Nyborg, Kjell G, 2005.
"The Value of Tax Shields IS Equal to the Present Value of Tax Shields,"
CEPR Discussion Papers
5182, C.E.P.R. Discussion Papers.
- Cooper, Ian A. & Nyborg, Kjell G., 2006. "The value of tax shields IS equal to the present value of tax shields," Journal of Financial Economics, Elsevier, vol. 81(1), pages 215-225, July.
- Cooper, Ian A. & Nyborg, Kjell G., 2005. "The value of tax shields IS equal to the present value of tax shields," Discussion Papers 2005/14, Department of Business and Management Science, Norwegian School of Economics.
- Miles, James A & Ezzell, John R, 1985. " Reformulating Tax Shield Valuation: A Note," Journal of Finance, American Finance Association, vol. 40(5), pages 1485-92, December.
- Richard S Ruback, 2002. "Capital Cash Flows: A Simple Approach to Valuing Risky Cash Flows," Financial Management, Financial Management Association, vol. 31(2), Summer.
- Laurence Booth, 2002. "Finding Value Where None Exists: Pitfalls In Using Adjusted Present Value," Journal of Applied Corporate Finance, Morgan Stanley, vol. 15(1), pages 95-104.
- Isik Inselbag & Howard Kaufold, 1997. "Two Dcf Approaches For Valuing Companies Under Alternative Financing Strategies (And How To Choose Between Them)," Journal of Applied Corporate Finance, Morgan Stanley, vol. 10(1), pages 114-122.
- Lewellen, Wilbur G. & Emery, Douglas R., 1986. "Corporate Debt Management and the Value of the Firm," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 21(04), pages 415-426, December.
- André Farber & Roland Gillet & Ariane Szafarz, 2007.
"A general formula for the WACC: a reply,"
Working Papers CEB
07-004.RS, ULB -- Universite Libre de Bruxelles.
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