La versión española de este artículo se puede encontrar en: "http://ssrn.com/abstract=1826264" http://ssrn.com/abstract=1826264This paper shows how to proceed to find the optimal capital structure and value with period-to-period constant and variable leverage, when the discount rate for tax...

This article (1) identifies three sources of risk for tax shields (TS): Two of them are associated with debt risk and one is associated with operating risk. (2) A set of conditions for defining risky debt associated with cash flow, not with earnings, is presented. (3) It further shows that...

The English version of this paper can be found at 'http://ssrn.com/abstract=1655244' http://ssrn.com/abstract=1655244.Se presenta la derivación de costo de capital bajo la premisa del ahorro de impuestos de riesgo descuento con el costo de capital apalancado. Se demuestra que la formulación es...

There are methods to match value added approaches (Residual Income Method, RIM and Economic Value Added, EVA) with discounted cash flow methods, DCF. In this note we use a real life case from an emerging country to illustrate the matching, with complexities such as unpaid taxes, losses carried...

I identify three sources of risk for the tax shields: two of them associated to the risk of debt and one associated to the operating risk. I present a set of conditions for defining risky debt associated to cash flow and not to accounting earnings. I explain why realization of tax shields for...

We derive and present the formula for optimal debt under the assumption that tax shields are discounted at the cost of levered equity, Ke and cash flows are on perpetuity. The formulation is consistent and is derived from basic financial principles. This formulation is valid for non-growing...

In this article we use a real life case from an emerging country to illustrate the valuation with discounted cash flow methods that include complexities such as unpaid taxes, losses carried forward, foreign exchange debt, presumptive income and inflation adjustments to the Financial Statements....

This paper presents the derivation of non-circular formulas for the calculation of the cost of equity, WACC, equity value (as a function either of initial debt or leverage), and levered firm value, using some previous results and showing their consistency with other well-known expressions....

We present the derivation of cost of capital under the assumption of risky tax shields discounted with the cost of levered equity. We show that the formulation is consistent and is derived from basic financial principles. This formulation is valid for finite cash flows and non growing...

This paper presents a formal derivation of general expressions for Ke and WACC in perpetuities with constant growth, which do not make any assumption on what the proper discount rate is to be applied to the firm's tax shield, and are complemented with numerical examples of its application....