efficient investment

• 有效投资

efficient investment的用法和样例：

例句

1. How could an investor identify the best of a set of efficient portfolios of common stocks?
   投资者如何能够辨别出普通股有效投资组合集中最优的那个？
2. In addition, centered ownership structure neither constrains overinvestment nor promotes the effective investment in non-state-holding enterprises.
   此外，居中的股权结构既不能抑制非国有控股企业过度投资，又不能促进企业有效投资。