Return on assets is an important indicator of a company. 摘要资产收益率是综合反映公司业绩的重要指标。
This indicates that the genuine relevance between the capital return is well reflected by the optimal return correlation matrix mentioned above. 这说明采用该方法所选取的最优收益相关矩阵能真实反映资产收益率之间的相关性。
