Seen from the structure principle, stratified sampling method and optimized sampling method are rational and effective. In additional, constructing the optimal index investment portfolio is the most essential link in the two index investment methods.
从其构造原理中可以看出,分层抽样法和优化选样法是比较合理有效的构造方法,此外,指数投资组合的构建及其优化问题是这两种指数化构造方法中最关键的环节。
参考来源 - 指数投资组合优化方法的比较研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The scores were combined to create a paternal-investment index which ranged from a high of + 4 to a low of -4.
把得分相加，就会得出最高4分最低- 4分的父亲投入指数。
The net revenues of the 12 firms in the Boston Consulting Group’s investment-banking index tumbled to $6.2 billion in the third quarter, from $27.1 billion a year earlier.
被波士顿（BCG）咨询公司列入其投行业务指数的12家投资银行今年第三季度的净收入从去年的271亿大幅下滑至62亿。
With our country's traditional performance evaluation index -the financial index is compared; Eva can appraise and encourage uniting with the bonus the investment decision, performance of enterprises.
与我国传统的业绩评价指标——财务指标相比，EVA能把企业的投资决策、业绩评价和奖金激励统一起来。
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