PT - JOURNAL ARTICLE AU - Wayne Y. Lee TI - Diversification and time AID - 10.3905/jpm.1990.409265 DP - 1990 Apr 30 TA - The Journal of Portfolio Management PG - 21--26 VI - 16 IP - 3 4099 - https://pm-research.com/content/16/3/21.short 4100 - https://pm-research.com/content/16/3/21.full