RT Journal Article SR Electronic T1 The Penn Square Bank failure and the inefficient market JF The Journal of Portfolio Management FD Institutional Investor Journals SP 34 OP 36 DO 10.3905/jpm.1985.409011 VO 11 IS 3 A1 Donald R. Fraser A1 R. Malcolm Richards YR 1985 UL https://pm-research.com/content/11/3/34.abstract AB