We demonstrate analytically and illustrate with examples that the conventional measures of the residual operating income such as the Economic Value Added (EVA) are biased by design and so may yield a misleading assessment of financial performance. Fundamentally, the magnitude of the measurement error depends on the amount of realized interest tax shields and the book to value ratio. Other potentially significant sources of distortions induced by the EVA design are identified as well. We propose a robust alternative that is a concurrent evaluation of the firm's operating and total performance by means of two related metrics, the Operating EVA (OEVA) and the Total EVA (TEVA). Coherent implementation of the OEVA-TEVA technique is simpler than the EVA both analytically and computationally. It is also able to provide additional information for the management decision making. The overall consistency of the OEVA-TEVA approach is supported by a formally proved equivalence of the corresponding OEVA-TEVA valuation model to the fundamental valuation by the cash flow discounting.
A typical approach for valuing finite cash flows is to assume that leverage is constant (usually as target leverage) and the cost of equity, Ke and the Weighted Average Cost of Capital, WACC are also assumed to be constant. For cash flows in perpetuity, and with the cost of debt, Kd as the discount rate for the tax shield, it is indeed the case that the Ke and WACC applied to the FCF are constant if the leverage is constant. However this does not hold true for finite cash flows.In this document we show that for finite cash flows, Ke and hence WACC depend on the discount rate that is used to value the tax shield, TS and as expected, Ke and WACC are not constant with Kd as the discount rate for the tax shield, even if the leverage is constant. We illustrate this situation with a simple example. We analyze five methods: DCF using APV, FCF and traditional and general formulation for WACC, present value of CFE plus debt and Capital Cash Flow, CCF.
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