RT Journal Article SR Electronic T1 On Surplus Shortfall Constraints JF The Journal of Investing FD Institutional Investor Journals SP 64 OP 74 DO 10.3905/joi.5.4.64 VO 5 IS 4 A1 Stefan Jaeger A1 Heinz Zimmermann YR 1996 UL https://pm-research.com/content/5/4/64.abstract AB