RT Journal Article SR Electronic T1 Are Earnings Surprises Predictable? JF The Journal of Investing FD Institutional Investor Journals SP 47 OP 51 DO 10.3905/joi.2.2.47 VO 2 IS 2 A1 Donald J. Peters YR 1993 UL https://pm-research.com/content/2/2/47.abstract AB