ANGHELACHE, Gabriela Victoria; ANGHEL, Mădălina Gabriela - In: Theoretical and Applied Economics XVIII(2013) (2013) 11(588), pp. 7-24
In the mid-twentieth century, under an unprecedented growth of the business of trading in securities, the need to provide a modern framework for assessing the performance of portfolios of financial instruments was felt. To that effect, it is noted that over this period, more and more economists...