This paper proposes that there exist situations when two or more investors who want to invest equal amounts in different, but successive periods, would be better off to "collude" and invest for the whole period to take advantage of an upward slopping yield curve. The goal of this paper is to...

The aim of this paper is to determine a beta distribution of the first type, when a group of experts coincide in the minimum and the maximum values of a random variable (times, in the case of tasks; cash-flows, in the case of investments, etc.), but they disagree with the more likely values. For...

El objetivo de este artículo es la obtención de una tasa social de descuento apropiada para valorar proyectos de inversión a largo o muy largo plazo, como suelen ser muchos proyectos gubernamentales y/o medioambientales. La aproximación al problema se llevará a cabo a través de la tasa de...

El objetivo de este artículo es generalizar la escindibilidad de las leyes financieras para toda operación asociativa y cancelativa entre expresiones, racionales o no, de estas leyes. Como caso particular, tenemos la escindibilidad en producto de la ley y en suma del interés, introduciendo,...

The aim of this paper is to generalize the q-exponential discounting function introduced by Cajueiro (2006) [1] using the hyperbolic function as a base. The presented generalization has two aspects. First, we consider any discounting function F(t), and not just hyperbolic discounting. Second,...

We consider systems of companies which have financial interests in each other and develop principles by which the real interest of one company in another can be determined. The paper develops an algorithm to calculate true interests from a weighted digraph that encodes the direct and indirect...

In this paper a new approach of the Markowitz's model is presented. Indeed, using an inner product, a quantitative and explicit solution for optimal portfolio selection is given. To do this, a scalar product is defined in which allows us to calculate the composition of the optimal portfolio and...