expected return rate = probability (win) *

return rate at win + probability (lose) * loss rate

this needs to be higher than inflation rate.

所有跟帖: 

谢谢,我这个好像太依赖股票市场了。 -08明前茶- 给 08明前茶 发送悄悄话 08明前茶 的博客首页 (0 bytes) () 11/14/2012 postreply 15:41:10

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