PT - JOURNAL ARTICLE AU - Halbert S. Kerr TI - The battle of insider trading vs. market efficiency AID - 10.3905/jpm.1980.408763 DP - 1980 Jul 31 TA - The Journal of Portfolio Management PG - 47--50 VI - 6 IP - 4 4099 - https://pm-research.com/content/6/4/47.short 4100 - https://pm-research.com/content/6/4/47.full