RT Journal Article SR Electronic T1 The Hidden Risks in Insuring Risks JF The Journal of Portfolio Management FD Institutional Investor Journals SP 1 OP 1 DO 10.3905/jpm.20.4.1 VO 20 IS 4 A2 Peter L. Bernstein YR 1994 UL https://pm-research.com/content/20/4/1.abstract AB