La versión española de este artículo se puede encontrar en: 'http://ssrn.com/abstract=2685207' http://ssrn.com/abstract=2685207.We discuss the relevance of personal taxes on Tax Shields. Interest and taxes are the basis for defining an optimal capital structure. When personal taxes are...

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...

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...

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...

The English version of this article is available at: "http://ssrn.com/abstract=2214674" http://ssrn.com/abstract=2214674.En estas diapositivas se discute la dificultad práctica y conceptual de la búsqueda de una estructura óptima de capital EOC. Se propone un enfoque normativo que llamamos...

La versión española de este artículo se puede encontrar en: "http://ssrn.com/abstract=2214703" http://ssrn.com/abstract=2214703.In these slides we discuss the practical and conceptual difficulty of finding an Optimal Capital Structure. We propose a normative approach we call Implicit...

This is a teaching material for a module of Financial Analysis at Universidad Tecnológica de Bolivar. The educational material was developed with Professor Ricardo Davila from Universidad Javeriana, Bogota, Colombia. The written material has been modified several times using the feedback from...

The Spanish version of this paper can be found http://ssrn.com/abstract=1899685This paper estimates the value of tax shields, using the discounted cash flow method for 23 major non financial firms listed in the Bolsa de Valores de Colombia (Colombian Stock Exchange) between 2001 and 2010. Our...

When calculating the Weighted Average Cost of Capital (WACC), the well-known textbook formula includes tax shields with the (1-T) factor affecting the contribution of debt to WACC. In this work we develop a procedure for properly calculating tax shields including the case when Losses Carried...

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...