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"The weighted average cost of capital is not quite right": A comment

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  • Pierru, Axel

Abstract

In this journal, Miller [Miller, R. A. (2009). The weighted average cost of capital is not quite right. The Quarterly Review of Economics and Finance, 49, 128-138] argues that the standard WACC formula fails to correctly remunerate shareholders and bondholders. This is proved by considering a project yielding a zero net present value. In this comment, we prove that this apparent failure of the standard WACC approach simply stems from the fact that, in Miller's example, the project's debt ratio is implicitly assumed constant throughout the project's life, whereas it is not. We also show that the suggested modified WACC formula is not relevant. More generally, we emphasize that, in any year, a project's debt ratio must be defined with respect to the economic value of the project.

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  • Pierru, Axel, 2009. ""The weighted average cost of capital is not quite right": A comment," The Quarterly Review of Economics and Finance, Elsevier, vol. 49(3), pages 1219-1223, August.
    • Handle: RePEc:eee:quaeco:v:49:y:2009:i:3:p:1219-1223
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    References listed on IDEAS

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    1. Graham, John R. & Harvey, Campbell R., 2001. "The theory and practice of corporate finance: evidence from the field," Journal of Financial Economics, Elsevier, vol. 60(2-3), pages 187-243, May.
    2. Miles, James A. & Ezzell, John R., 1980. "The Weighted Average Cost of Capital, Perfect Capital Markets, and Project Life: A Clarification," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 15(3), pages 719-730, September.
    3. Miller, Richard A., 2009. "The weighted average cost of capital is not quite right: Reply to M. Pierru," The Quarterly Review of Economics and Finance, Elsevier, vol. 49(3), pages 1213-1218, August.
    4. Miles, James A & Ezzell, John R, 1985. "Reformulating Tax Shield Valuation: A Note," Journal of Finance, American Finance Association, vol. 40(5), pages 1485-1492, December.
    5. Linke, Charles M. & Kim, Moon K., 1974. "More on the Weighted Average Cost of Capital: A Comment and Analysis," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 9(6), pages 1069-1080, December.
    6. Miller, Richard A., 2009. "The weighted average cost of capital is not quite right," The Quarterly Review of Economics and Finance, Elsevier, vol. 49(1), pages 128-138, February.
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    Cited by:

    1. Muhammad Ilyas, Ihtesham Khan, Saima Urooge, 2019. "Earnings Manipulation and the Cost of Capital: Empirical Investigation of Non-Financial Listed Firms of Pakistan," Journal of Management Sciences, Geist Science, Iqra University, Faculty of Business Administration, vol. 6(1), pages 96-104, March.
    2. Keef, Stephen P & Khaled, Mohammed S & Roush, Melvin L, 2011. "Miller's (2009) WACC model: An extension," Working Paper Series 1995, Victoria University of Wellington, School of Economics and Finance.
    3. Keef, Stephen P & Khaled, Mohammed S & Roush, Melvin L, 2011. "A note resolving the debate on “The weighted average cost of capital is not quite rightâ€," Working Paper Series 2003, Victoria University of Wellington, School of Economics and Finance.
    4. Fabrizio Cacciafesta, 2015. "Using the WACC to rate a new project," CEIS Research Paper 339, Tor Vergata University, CEIS, revised 10 Apr 2015.
    5. Pierru, Axel & Babusiaux, Denis, 2010. "WACC and free cash flows: A simple adjustment for capitalized interest costs," The Quarterly Review of Economics and Finance, Elsevier, vol. 50(2), pages 240-243, May.
    6. Keef, Stephen P & Khaled, Mohammed S & Roush, Melvin L, 2011. "Miller's (2009) WACC model: An extension," Working Paper Series 18608, Victoria University of Wellington, School of Economics and Finance.
    7. Pierru, Axel & Roussanaly, Simon & Sabathier, Jérôme, 2013. "Capital structure in LNG infrastructures and gas pipelines projects: Empirical evidences and methodological issues," Energy Policy, Elsevier, vol. 61(C), pages 285-291.
    8. Keef, Stephen P. & Khaled, Mohammed S. & Roush, Melvin L., 2012. "A note resolving the debate on “The weighted average cost of capital is not quite right”," The Quarterly Review of Economics and Finance, Elsevier, vol. 52(4), pages 438-442.
    9. Keef, Stephen P & Khaled, Mohammed S & Roush, Melvin L, 2011. "A note resolving the debate on “The weighted average cost of capital is not quite right”," Working Paper Series 18609, Victoria University of Wellington, School of Economics and Finance.

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