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- UID
- 223385
- 帖子
- 272
- 主题
- 42
- 注册时间
- 2011-7-11
- 最后登录
- 2016-4-18
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They are available portfolios and are the most efficient with a given level of risk/return they offer the best other variable (same exp return, lowest STD dev).
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-My friend QQQbbe, we will never forget you. |
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发表于 2011-7-26 04:20
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