差价合约吧 关注:90贴子:622
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新年福利,懂的可以收藏 ;) 我才探究出來的小東西

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Same expected return, lower risk! This makes DIVERSIFICATION between such assets a complete no-brainer. Diversification has been called the only free lunch in finance.
新年快樂!


1楼2017-01-01 01:07回复
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    2楼2017-01-02 21:17
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