RT Journal Article SR Electronic T1 The face of poverty seen and unseen JF The Journal of Portfolio Management FD Institutional Investor Journals SP 4 OP 4 DO 10.3905/jpm.1979.408675 VO 5 IS 2 A1 Peter L. Bernstein YR 1979 UL https://pm-research.com/content/5/2/4.abstract AB