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请教midas老师,通过组建correlation 接近0的组合能否真正大幅度降低风险? |
发表于 2012-8-15 11:48:04
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发表于 2012-8-15 14:07:39
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发表于 2012-8-15 17:15:01
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发表于 2012-8-15 22:11:45
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发表于 2012-8-16 10:18:55
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