PT - JOURNAL ARTICLE AU - Peter L. Bernstein TI - The Jarring Surprises of the Present AID - 10.3905/jpm.1979.408691 DP - 1979 Apr 30 TA - The Journal of Portfolio Management PG - 4 VI - 5 IP - 3 4099 - https://pm-research.com/content/5/3/4.short 4100 - https://pm-research.com/content/5/3/4.full