PT - JOURNAL ARTICLE AU - Peter L Bernstein TI - What Caused the Mess? AID - 10.3905/JPM.2008.35.1.001 DP - 2008 Oct 31 TA - The Journal of Portfolio Management PG - 1--1 VI - 35 IP - 1 4099 - https://pm-research.com/content/35/1/1.short 4100 - https://pm-research.com/content/35/1/1.full