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...

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 finite cash flows in any period of time t are correlated to Earnings before Interest and Taxes and are not correlated to interest expenses at...

In these slides we discuss the practical and conceptual difficulty of finding an Optimal Capital Structure. We propose a normative approach we call Implicit Bankruptcy Costs Theory and how to proceed to find the optimal capital structure and value with period-to-period constant and variable...

A nuestros estudiantes de Finanzas les enseñan que lo más importante en ese área es saber calcular y utilizar la tasa de interés efectiva o capitalizada. Para algunos de nuestros profesores, eso es todo; si un estudiante llega sin saber esa ficción, no sabe Finanzas. Más aun, una gran...

In cash flow valuation, on grounds of simplicity, it is common to assume that the leverage is constant over time. With constant leverage, the return to levered equity is constant and consequently, the Weighted Average Cost of Capital (WACC) applied to the Free Cash Flow is constant. However,...

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...

Practitioners and some academics use potential dividends rather than actual payments toshareholders for valuing a firm´s equity. We underline the differences between the two methods and present some arguments supporting the thesis that firm valuation with potential dividends overstate the...

This paper introduces a new method of investment performance analysis, based on the recent approach of Average Internal Rate of Return (AIRR). We show that the approach generates rates of return suitable for assessing both a fund´s (portfolio´s) performance and a manager´s performance. The...

This paper shows that the Internal-Rate-of-Return (IRR) approach is unreliable, and that the recently introduced Average-Internal-Rate-of-Return (AIRR) model constitutes the basis for an alternative theoretical paradigm of rate of return. To this end, we divide the paper into two parts: a pars...