RT Journal Article SR Electronic T1 Diversifying among asset allocators JF The Journal of Portfolio Management FD Institutional Investor Journals SP 9 OP 14 DO 10.3905/jpm.1990.409266 VO 16 IS 3 A1 Roger G. Clarke A1 Michael T. FitzGerald A1 Philip Berent A1 Meir Statman YR 1990 UL https://pm-research.com/content/16/3/9.abstract AB