That's what this whole theory is about, how to get a lot of expected return without getting a lot of risk.
整个金融理论的中心,就是如何获得高收益,同时降低风险
You reduce a lot of the health risks, if you exercise often.
如果你经常运动的话,它会帮你降低许多健康问题的风险。
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
And then not surprisingly, vegetables and fish, and there is research as well showing that moderate alcohol intake is linked to lower risk of heart disease.
接下来是蔬菜和鱼,这并不足为奇,还有研究表明,适量饮酒可以降低心脏病的患病风险
Risk pooling means they put a lot of people with independent or low-correlated risk into a pool and reduce the risk for the whole pool.
风险汇聚即,将独立或相关性小的风险汇聚起来,以降低整体风险
Insurance relies on this theory of risk pooling but it has to make it work.
保险是基于风险汇聚理论的,并运用其有效降低风险
But, the real technology is-- the technology that works to eliminate risks is to spread them out, to pool them, to share them among many different people.
但是真正的技术-,能够降低风险,通过风险汇聚,将风险分散,让很多人共同承担。
So tens or hundreds of millions of dollars would go into a study like this by the time it was completed, money that could have been used for other things, to test whether eating a low fat diet would reduce risk for breast cancer.
数以百万计的美元,投入到这样的研究,当研究结束时,本可以用来做其他事情的钱,被用来检测是否低脂膳食,可降低患乳腺癌风险
The reason it's low is that we do have,what I think is, superior diversification and that really lowers the University's risk.
我认为耶鲁beta系数低的原因是,我们有卓越的多元化投资,这确实降低了耶鲁资产的风险
One of the hypotheses that was being tested in this particular study was that a low-fat diet would reduce a woman's risk for breast cancer.
其中一个,在研究中被检验的假设是,低脂膳食,有助于降低妇女患乳腺癌的风险
Oil, bonds, and stocks are all independent-- somewhat independent--they're not perfectly independent, but they're somewhat independent and, to the extent that they are, it lowers the variance.
石油,债券和股票都是互相独立-,一定程度上独立,不是绝对的独立,但一定程度上独立,可以使方差值变小,降低风险。
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