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...

In this note, we comment on and discuss the weirdness and absurdity of the idea that Professor Fernandez has argued for. The weirdness or absurdity of a theory does not automatically disqualify a theory; however, perhaps another review of the implications of the theory may have some merit. It...

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...

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...

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...

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...