见内，估计重点是平均和about..

来源: 于 2023-04-12 05:39:04 [旧帖] [给我悄悄话] 本文已被阅读：次
about seven years
 
How long has it historically taken a stock investment to double? NYU business professor Aswath Damodaran has done the math. According to his math, since 1949 S&P 500 investments have doubled ten times, or an average of about seven years each time.Feb 16, 2023