RT Journal Article SR Electronic T1 The negative earnings effect JF The Journal of Portfolio Management FD Institutional Investor Journals SP 27 OP 33 DO 10.3905/jpm.1991.409336 VO 17 IS 3 A1 Michael. Ettredge A1 Russell J. Fuller YR 1991 UL https://pm-research.com/content/17/3/27.abstract AB