提出了一个比较评价量有效性的标准，得到了最优标准评价量的结果，结合因子分析模型，构造了上市公司投资价值评价的一种新方法，利用这个评价方法，对于QFII概念股的投资价值进行了评价，最后给出了结论。
In this paper, a criterion to compare the effectiveness of the evaluation quantity is put forward, and the result of the optimal standard evaluation quantity is obtained. A new method to evaluate the investment value of listed companies is constructed by combining the factor analysis model, then the investment value of QFII concept stock is evaluated by using this evaluation method, and finally the conclusion is given.
