Essayyad, Musa; Haddad, Mahmoud; Benkato, Omar - In: Economia Internazionale / International Economics 47 (1994) 2-3, pp. 139-159
It is generally recognized that international portfolio diversification may generate substantial reduction in systematic risk. Previous studies assume stability of the systematic risk measure, beta, and hence assume the permanence of risk reduction generated from international diversification....
