Well, there's a formula that's been used by bond traders for hundreds of years and it's a traditional expression, which goes from the discount rate to the price.

这里有个债券交易商,用了上百年的公式,这是个传统表达式,它能用折扣率算得价格

耶鲁公开课 - 金融市场课程节选

Does the fact that death follows life-- does that produce any interaction effects between the two, which need to be added into our formula-- ? added into the mix as well?

那生后即是死这个事实-,有没有在这两者间产生任何相互影响，也需要被增加到我们的公式中来-,要增加到混合中来？

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You might ask, well is this an approximate formula?

你们可能会问,这是一个约等式吗

耶鲁公开课 - 金融市场课程节选