RT Journal Article SR Electronic T1 Who Pays the Pensions? JF The Journal of Portfolio Management FD Institutional Investor Journals SP 2 OP 2 DO 10.3905/jpm.1989.2 VO 15 IS 4 A2 Peter L. Bernstein YR 1989 UL https://pm-research.com/content/15/4/2.abstract AB