RT Journal Article SR Electronic T1 “God help the surplus!” JF The Journal of Portfolio Management FD Institutional Investor Journals SP 4 OP 4 DO 10.3905/jpm.1982.408843 VO 8 IS 2 A1 Bernstein, Peter L. YR 1982 UL http://jpm.pm-research.com/content/8/2/4.abstract AB