PT - JOURNAL ARTICLE AU - David L. Ikenberry AU - Richard L. Shockley AU - Kent L. Womack TI - Why Active Fund Managers Often Underperform the S&P 500 AID - 10.3905/jwm.1998.13 DP - 1998 Jan 31 TA - The Journal of Wealth Management PG - 13--26 VI - 1 IP - 1 4099 - https://pm-research.com/content/1/1/13.short 4100 - https://pm-research.com/content/1/1/13.full