PT - JOURNAL ARTICLE AU - Bradford Cornell AU - Dhafrallah Hammani TI - Option Pricing in Bear and Bull Markets AID - 10.3905/jpm.1978.408654 DP - 1978 Jul 31 TA - The Journal of Portfolio Management PG - 30--32 VI - 4 IP - 4 4099 - https://pm-research.com/content/4/4/30.short 4100 - https://pm-research.com/content/4/4/30.full