There is a plethora of research literature about the diversification effect of stock portfolio overseas.

对股票投资组合国际多元化的效应的研究，国外的文献已经多如汗牛充栋了。

youdao

There is a plethora of research literature about the diversification effect of stock portfolio overseas.

对股票投资组合国际多元化的效应的研究，国外的文献已经多如汗牛充栋了。

youdao