PT - JOURNAL ARTICLE AU - George P. Tsetsekos AU - Richard A. DeFusco TI - Portfolio performance, managerial ownership, and the size effect AID - 10.3905/jpm.1990.409270 DP - 1990 Apr 30 TA - The Journal of Portfolio Management PG - 33--39 VI - 16 IP - 3 4099 - https://pm-research.com/content/16/3/33.short 4100 - https://pm-research.com/content/16/3/33.full