Il presente lavoro tratta del classico criterio di capital budgeting derivato dal CAPM,secondo il quale un investimento è conveniente se e solo se il suo tasso di rendimento atteso è maggiore del costo del capitale. Tale criterio è esposto, tra gli altri, da Rubinstein (1973) ed è...

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...

En esta nota se hace un breve repaso de las principales estadísticas de las firmas no transadas en bolsa tanto en los Estados Unidos como en Colombia como un ejemplo de un Mercado emergente o en desarrollo. Se presentan algunas alternativas para calcular el costo del patrimonio o capital propio...

Usually in financial textbooks and courses the theory of portfolio selection is taught in a strictly theoretical way. There is a model (Markowitz) that stipulates that an investor has preferences and that she will choose the best portfolio, given her preference curves and an efficient frontier....

Este es material de curso del libro Decisiones Empresariales bajo Riesgo e Incertidumbre. El nivel del libro es basico. Se usan muy pocas matematicas y puede ser usado por gerentes. En este noveno capitulo se presenta el analisis de portafolio de Markowitz y el model de valoracion de activos de...

Usually in financial textbooks and courses the theory of portfolio selection is taught in a strictly theoretical way. There is a model (Markowitz) that stipulates that an investor has preferences and that she will choose the best portfolio, given her preference curves and an efficient frontier....

Under a comonotonicity assumption between aggregate dividends and the market portfolio, the CCAPM formula becomes more tractable and more easily testable. In this paper, we provide theoretical justifications for such an assumption.

This paper shows that the systematic risk (or "beta") of individual stocks increases by an economically and statistically signi…cant amount on days of firm-specific news announcements, and reverts to its average level two to five days later. We employ intra-daily data and recent advances in...

In this teaching note I make a short review of the major statistics regarding the non traded firms in the U.S. and in Colombia as an example of an emerging market. I show some alternatives to estimate the cost of equity capital when there is not enough trading information. Some of them use the...