And that team is continuing to gather that information." A U.S.advocacy group, Physicians for Human Rights, says that allowing Dostum to return to any position of power before there is a thorough and transparent investigation of allegations against him will been seen by Afghans as confirmation that warlords like Dostum have impunity for their crimes.

VOA: standard.2009.08.17

For any given level of return, you can reduce the risk; for any given level of risk, you can increase the return; sounds pretty good.

给定回报率,可以降低风险,给定风险水平,可以提高回报率,听上去不错

耶鲁公开课 - 金融市场课程节选

You should see that the blue line is better than the pink line because, for any expected return, the blue line is to the left of the pink line, right?

可以看到蓝线比粉线好,原因是对于任意的预期收益率，蓝线都在粉线的左边，对吧？

耶鲁公开课 - 金融市场课程节选

You want to, for any given expected return, you want to minimize the standard deviation, so it's the left-most line and that means that everyone will be holding the same portfolio.

你希望，在期望收益固定的情况下，你肯定希望将标准差最小化，而这条线是最左边的线,这就意味着所有人,都愿意持有这样的投资组合。

耶鲁公开课 - 金融市场课程节选

I'll let you read Siegel and his discussion of this possibility, ... but I think that-- what I want to get now is not necessarily any agreement on whether you believe that there's such a high excess return for stocks.

我会要求你们读西格尔的书,以及他对这种可能性的讨论，但是我认为-,你们并不需要,同意炒股的收益,远远高于其他的投资方式。

耶鲁公开课 - 金融市场课程节选