RT Journal Article SR Electronic T1 Asset allocation could be dangerous to your health JF The Journal of Portfolio Management FD Institutional Investor Journals SP 5 OP 8 DO 10.3905/jpm.1990.409278 VO 16 IS 3 A1 Paul A. Samuelson YR 1990 UL https://pm-research.com/content/16/3/5.abstract AB