One of the fundamental principles in portfolio selection models is minimization of risk through diversification of the investment. This seems to require that in a given working universe, or market, the investment should be spread among all (or almost all) the available assets. Indeed, this is...

In this paper we propose an extensive empirical analysis on three different categories of portfolio selection models, each focused on different objectives: minimization of risk, maximization of capital diversification, and uniform distribution of risk allocation. This latter approach, also...