fin01 eem hsbc emergingmarketsindex
回答: 相关系数 公司可通过购买恒定股票量或的投资组合选择完全消除财富的不确定性 公司无法消除所带来的风险,从而市场是不完备的,投资者无
由 marketreflections
于 2011-11-22 16:06:22
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