By introducing the concept of unit risk and combining the risk minimum point on optimum investment curve, the article offers the optimum combination plan under various circumstances.
本研究通过引入单位风险的概念，并结合有效边界上的单位风险极小点，给出了各种情况下有风险投资和无风险投资的最优组合方案。
By introducing the concept of unit risk and combining the risk minimum point on optimum investment curve, the article offers the optimum combination plan under various circumstances.
本研究通过引入单位风险的概念，并结合有效边界上的单位风险极小点，给出了各种情况下有风险投资和无风险投资的最优组合方案。
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