RT Journal Article SR Electronic T1 Option Pricing in Bear and Bull Markets JF The Journal of Portfolio Management FD Institutional Investor Journals SP 30 OP 32 DO 10.3905/jpm.1978.408654 VO 4 IS 4 A1 Bradford Cornell A1 Dhafrallah Hammani YR 1978 UL https://pm-research.com/content/4/4/30.abstract AB