Applicability of the Classic WACC Concept in Practice

M. Asif Mian () and Ignacio Velez-Pareja ()

No 2017, Proyecciones Financieras y Valoración from Master Consultores

Abstract: A large percentage of companies use the discounted cash flow (DCF) approach as the primary technique of investment/project evaluation and capital budgeting process. This approach requires forecasting detailed cash flow of the project under evaluation and then discounting the resulting cash flow to the present value (Net Present Value - NPV) using an appropriate discount rate. The discount rate commonly used represents the Weighted Average Cost of Capital (WACC) of the firm. There is no scarcity of literature on this subject as the concept has been around for the last 50 years or so. Although most analysts believe the concept is simple and very well known, the irony is that its misinterpretation and misuse prevails. There are many versions of the WACC equation and each is specific to a certain cash flow. Therefore, using the classic WACC relationship in all cases may result in calculation of overly optimistic NPV. Depending on the cash flow pattern, the investment may show positive NPV at the classic WACC but it will actually be loosing on equity. This paper highlights the (a) pitfalls and misuse of the WACC, (b) interdependence between type of cash flow and WACC, (c) assumptions behind the WACC and whether these assumptions are realistic, and (d) shows alternative approaches to arrive at the correct net present value (NPV). The company CEOs, management, analysts, and other investors using WACC for investment decisions need to be fully aware of its pitfalls and misuse.

Keywords: Cost of capital (search for similar items in EconPapers)
JEL-codes: G30 (search for similar items in EconPapers)
Pages: 19
Date: 2005-07-12
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Persistent link: https://EconPapers.repec.org/RePEc:col:000463:002017

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