PT - JOURNAL ARTICLE AU - Noël Amenc AU - Lionel Martellini TI - Invited Editorial Comment AID - 10.3905/jpm.2012.38.4.004 DP - 2012 Jul 31 TA - The Journal of Portfolio Management PG - 4--5 VI - 38 IP - 4 4099 - https://pm-research.com/content/38/4/4.short 4100 - https://pm-research.com/content/38/4/4.full