In this paper we evaluate a set of Colombian exchange rate forecasts during 1995-2005, using a Purchasing Power of Parity Exchange Rate Model (PPPER). Our first finding is that the computed forecasts seem to validate the use of this model under certain conditions given that, theoretically, it...

In this paper we evaluate a set of colombian exchange rate forecasts during the 1995-2005 period, using a Purchasing Power of Parity Exchange Rate Model (PPPER). Our first finding is that the computed forecasts seem to validate the use of this model under certain conditions given that,...

En este trabajo evaluamos la proyección de la tasa de cambio (peso colombiano/dólar) con datos de 1995 a 2005 de Colombia a través del modelo de Tasa de Cambio de Paridad de Poder Adquisitivo (TCPPA). En primer lugar encontramos que las proyecciones realizadas validan el uso de este modelo...

This teaching note shows the relationship between levered and unlevered betas and the general formulation for the cost of equity. It also shows, step by step, the procedure to estimate betas from data found in the stock market.It shows well known procedures for estimating betas: correlation...

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...

In this article we use a real life case from an emerging country to illustrate the valuation with discounted cash flow methods that include complexities such as unpaid taxes, losses carried forward, foreign exchange debt, presumptive income and inflation adjustments to the Financial Statements....

This paper presents the derivation of non-circular formulas for the calculation of the cost of equity, WACC, equity value (as a function either of initial debt or leverage), and levered firm value, using some previous results and showing their consistency with other well-known expressions....

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...

This paper presents a formal derivation of general expressions for Ke and WACC in perpetuities with constant growth, which do not make any assumption on what the proper discount rate is to be applied to the firm's tax shield, and are complemented with numerical examples of its application....

In this paper we propose an analytical solution to the circularity problem between value and cost of capital. Our solution is derived starting from a central principle of finance that relates value today to value, cash flow, and the discount rate for next period. We derive a general formulation...