RT Journal Article SR Electronic T1 On The Relationship Between Expected Returns and Implied Volatility of Interest Rate-Dependent Securities JF The Journal of Portfolio Management FD Institutional Investor Journals SP 93 OP 109 DO 10.3905/jpm.1998.409636 VO 24 IS 3 A1 Ehud I. Ronn A1 Pavan Wadhwa YR 1998 UL https://pm-research.com/content/24/3/93.abstract AB