Economists say India has bought gold to diversify its assets and hold fewer dollars at a time when the U.S.currency is weakening against other currencies.

VOA: standard.2009.11.06

That means that you want to pick, ultimately, a point on this-- this line is tangent to the efficient portfolio frontier with all the other assets in it.

那意味着你会最终会在这上面选一个点-,这条直线是与有效边界相切的,后者包含了所有的资产组合。

耶鲁公开课 - 金融市场课程节选

This is a special case, though, because I've assumed that the assets are independent of each other, which isn't usually the case.

这是一个特例，因为我假设了,这个投资组合里的资产是相互独立的，但现实中通常都不是这样的。

耶鲁公开课 - 金融市场课程节选

The pink line takes two assets, one is stocks and the other is bonds, actually government bonds.

粉色线包含两种资产的投资组合，一个股票，另一个是债券，实际上是政府债券。

耶鲁公开课 - 金融市场课程节选

Now, I want to talk about forming a portfolio where the assets are not independent of each other, but are correlated with each other.

现在我要建立这样的一个投资组合,在这个组合里各项资产并不是相互独立的，而是相互关联的。

耶鲁公开课 - 金融市场课程节选

.. If you can find assets that all have-- that are all independent of each other, you can reduce the variance of the portfolio very far.

如果你能找到这样的一些资产-,一些相互独立的资产，就能很大程度上缩小这个投资组合的方差。

耶鲁公开课 - 金融市场课程节选