RT Journal Article SR Electronic T1 Rebalance disciplines for portfolio insurance JF The Journal of Portfolio Management FD Institutional Investor Journals SP 59 OP 62 DO 10.3905/jpm.1986.409084 VO 13 IS 1 A1 Ethan S. Etzioni YR 1986 UL https://pm-research.com/content/13/1/59.abstract AB