Underlying this analysis, we have estimates of the expected returns on assets, notably, the expected returns on stocks and bonds.

凭借这个分析，我们可以估算出资产预期投资收益，特别是股票和债券的预期收益。

耶鲁公开课 - 金融市场课程节选

It's a very important observation in finance that returns on a lot of speculative assets have fat-tailed distributions.

在金融界中,这是一种重要的观测方法,许多投机性资产的收益,都是服从长尾分布的

耶鲁公开课 - 金融市场课程节选

And again, a related problem that people run into is side-effects. You call a function and it returns a value, but maybe it, on purpose or on accident, modifies one of the actual parameters.

另外，一个人们常碰到的相关问题,就是副作用，你调用一个函数它返回一个值,但是故意或者无意的,它可能会修改一个实参的值。

麻省理工公开课 - 计算机科学及编程导论课程节选

I computed the returns on the stocks, bonds, and oil for every year from 1983 and I computed the average returns, which I take as the expected returns, I took the standard deviations, and I took the covariance.

我计算了从1983年以来每年的股票,债券和石油的收益，从而得出平均收益率，这些平均收益率作为预期收益率，然后算得标准差及协方差。

耶鲁公开课 - 金融市场课程节选

We want people who are maniacally focused on beating the markets, generating superior investment returns.

我们需要能完全专注于战胜市场的人,来产生卓越的投资收益

耶鲁公开课 - 金融市场课程节选

That could be investor only in bonds or an investor only in stocks, but I also show on here what some other returns are that are available.

表示投资者只投资了债券或者只投资了股票，同时我在这里也展示了,其它可能性组合的收益。

耶鲁公开课 - 金融市场课程节选

Depending on where the assets expected returns are and the assets' standard deviations, we can see that we might be able to do better than--have a lower variance than either asset.

根据资产的预期收益,以及收益的标准差，可以看到我们有更好的选择,这里的方差值比以上两种方案都要低。

耶鲁公开课 - 金融市场课程节选

That bond multiple of 72 is just a drag on returns -what's the point?

债券72倍的收益看起来像在拖后腿,为什么还要投资于债券呢

耶鲁公开课 - 金融市场课程节选

He's a PhD candidate now in Economics and he's doing his doctoral dissertation on stock analysts' recommendations and the relation to returns in the stock market.

他正在攻读经济学博士学位,他的博士论文方向是,股票分析师的建议,和其与股票市场回报的关系

耶鲁公开课 - 金融市场课程节选

But, I've dropped that assumption and now I'm going on to assuming that they're taking account of their dependence on each other, taking account of their different expected returns, and taking account of their different covariances and variances; so that's what we've got.

不过我已经放弃了那个假定,我现在假定,我们需要考虑它们彼此间的相关性，它们有着不同期望收益，不同的协方差和方差;,这是我们所学到的。

耶鲁公开课 - 金融市场课程节选