RT Journal Article SR Electronic T1 Are some insiders more “inside” than others? JF The Journal of Portfolio Management FD Institutional Investor Journals SP 18 OP 22 DO 10.3905/jpm.9.3.18 VO 9 IS 3 A1 Kenneth P. Nunn, Jr. A1 Gerald P. Madden A1 Michael J. Gombola YR 1983 UL https://pm-research.com/content/9/3/18.abstract AB