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...

This article explores the behavior of the stock market in Colombia with the information given by the Bolsa de Bogota Index (Indice de la Bolsa de Bogota, IBB). The index is analyzed from January, 1930 to December, 1998. The inflation rate covers the same period; the inflation rate as measured by...

This article explores the behavior of the stock market in Colombia with the information given by the Bolsa de Bogota Index (Indice de la Bolsa de Bogota, IBB). The index is analyzed from January, 1930 to December, 1998. The inflation rate covers the same period; the inflation rate is measured by...

An English version of this paper has been posted at SSRN and can be downloaded from: "http://ssrn.com/abstract=2667127" http://ssrn.com/abstract=2667127.Spanish Abstract: En esta nota se analiza la importancia de los impuestos personales sobre los ahorros en impuestos o escudos fiscales, AI. El...

The English version of this paper can be found at http://ssrn.com/abstract=1919305This 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...

The value of debt tax shields in foundational corporate valuation models by Nobel Laureates Modigliani and Miller (MM) continues to be a controversial issue that is central to our understanding of corporate finance. This paper argues that a fundamental valuation problem exists in the MM tax...

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...