RESUMEN La creación de fondos de inversión inmobiliaria en Colombia ha abierto posibilidades de diversificación de portafolio a agentes que deseen invertir en el sector inmobiliario sin tener que comprar y administrar finca raíz de forma directa. El comportamiento de estos fondos ha mostrado...

Bhardwaj and Brooks (1993) and Kim and Burnie (2002) look at the size effect during expansion and recession but come to different conclusions. While Bhardwaj and Brooks report reversal of size effects, Kim and Burnie show that the size effect is strong during economic expansion. A possible...

The risks associated with current and prospective costs of different energy technologies are crucial in assessing the efficiency of the energy mix. However, energy policy typically relies on the evolution of average costs, neglecting the covariances in the costs of the different energy...

The main objective of equity investors is the capitalized value of future benefits. In thisregard, most of the time, these investors prefer to build portfolios of financial instruments. Thisrequires the creation and permanent adaptation to the demands of the modern economy of modelsdesigned to...

Considering as starting point the theory developed by H. Markowitz in the years '50, J. Treynor (1962), W. Sharpe (1964), J. Lintner (1965) and J. Moshin (1966) have elaborated the famous model for evaluating the financial assets, CAPM. This model is utilized in order to set up the expected...

The classical capital asset pricing model postulates a linear relationship between stock returns and stock risks. However, a number of subsequent empirical studies have revealed some anomalies in this relationship, especially for firms with small size and high book-to-market values. A possible...

In the second chapter, we investigate the existence of a competitive equilibrium in a deterministic intertemporal economy with infinitely many consumers when the aggregate wealth is restricted to be finite. After we show the existence we discuss the efficiency of the equilibrium in relation with...

In recent years leading-edge financial institutions routinely use advanced analytical and numerical techniques from science and engineering to create, deploy, and manage new financial instruments. The proliferation and complexity of the available financial instruments in conjunction with the...

The purpose of this thesis, as implied by its title, is essentially two-fold. The first goal is to introduce and study the notion of properness, as well as some other concepts related to it. The importance of this property lies in the fact that in the infinite-dimensional case it effectively...