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...

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...

This paper shows that a decision maker using the CAPM for valuing firms and making decisions may contradict Modigliani and Miller’s Proposition I, if he adopts the widely-accepted disequilibrium NPV. As a consequence, CAPM-minded agents employing this NPV are open to arbitrage losses and miss...

This paper deals with the CAPM-derived capital budgeting criterion, and in particular with Rubinstein’s (1973) criterion, according to which a project is profitable if the project rate of return is greater than the risk-adjusted cost of capital, where the latter depends on the project’s...

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 paper deals with the CAPM-derived capital budgeting criterion, and in particular with Rubinstein’s (1973) criterion, according to which a project is profitable if the project rate of return is greater than the risk-adjusted cost of capital, where the latter depends on the project’s...

This paper shows that a decision maker using the CAPM for valuing firms and making decisions may contradict Modigliani and Miller’s Proposition I, if he adopts the widely-accepted disequilibrium NPV. As a consequence, CAPM-minded agents employing this NPV are open to arbitrage losses and miss...

We look at the Risk-Free Rate (RF) and the Market Risk Premium (MRP) used by analysts in 2015 to value companies of six countries. The dispersion of both, the RF and the MRP used, is huge, and the most unexpected result is that the dispersion is higher for the RF than for the MRP.We also find...

I review 150 textbooks on corporate finance and valuation published between 1979 and 2009 by authors such as Brealey, Myers, Copeland, Damodaran, Merton, Ross, Bruner, Bodie, Penman, Arzac… and find that their recommendations regarding the equity premium range from 3% to 10%, and that 51 books...

Regulators of many countries try to find the “true” WACC of Electricity, Gas, Water… activities. All their documents have in common a main confusion: they do not differentiate among expected, required, historical, and regulator allowed returns, which are 4 very different concepts. Most of...