In this paper, we try to build an efficient portfolio among four possible portfolios based on the some 31 Casablanca listed shares. Our analysis concerns the risk which arises from the Markowitz mean-variance approach. Our work method will be implemented as following: first of all, we will test...

This paper deals with a mean–variance optimal portfolio selection problem in presence of risky assets characterized by low-frequency trading and, therefore, low liquidity. To model the dynamics of illiquid assets, we introduce pure-jump processes. This leads to the development of a portfolio...

This paper deals with problems of modern theories of portfolio as a follow up of establishing the complex relationship of risk in the previous chapter and establishes that the analysis of the risk of a portfolio can only be made in close connection with the prognosis of profitability. Although...