RT Journal Article SR Electronic T1 ERISA and the Agency Problem JF The Journal of Investing FD Institutional Investor Journals SP 7 OP 16 DO 10.3905/joi.2.3.7 VO 2 IS 3 A1 Halpern, Philip YR 1993 UL http://joi.pm-research.com/content/2/3/7.abstract AB