PT - JOURNAL ARTICLE ED - Bernstein, Peter L. TI - The Time Dimension of Risk AID - 10.3905/jpm.20.1.1 DP - 1993 Oct 31 TA - The Journal of Portfolio Management PG - 1--1 VI - 20 IP - 1 4099 - https://pm-research.com/content/20/1/1.short 4100 - https://pm-research.com/content/20/1/1.full