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...

This paper demonstrates how both quantitative and qualitative results of general, analytically tractable asset-pricing model in which heterogeneous agents behave consistently with a constant relative risk aversion assumption can be applied to the particular case of "linear" investment choices....

Notwithstanding the recognized importance of traders' expectations in characterizing the observed market dynamics, for instance the formation of speculative bubbles and crashes on financial markets, little attention has been devoted so far by economists to a rigorous study of expectation...

We consider a simple pure exchange economy with two assets, one riskless, yielding a constant return on investment, and one risky, paying a stochastic dividend. Trading takes place in discrete time and in each trading period the price of the risky asset is fixed by imposing market clearing...

We consider a simple pure exchange economy with two assets, one riskless, yielding a constant return, and one risky, paying a stochastic dividend, and we assume trading to take place in discrete time inside an endogenous price formation setting. Traders demand for the risky asset is expressed as...