RT Journal Article SR Electronic T1 The limited relevance of volatility to risk JF The Journal of Portfolio Management FD Institutional Investor Journals SP 18 OP 20 DO 10.3905/jpm.1986.409086 VO 13 IS 1 A1 Ralph. Kosmicke YR 1986 UL https://pm-research.com/content/13/1/18.abstract AB