It's one of the questions of economics -what determines the term structure?

经济学中的一个老问题是,期限结构是由什么决定的呢

耶鲁公开课 - 金融市场课程节选

The other threat is eonomic, and all the economic issues are tied in my judgement, to the same core problem which is the long-term fiscal challenge that this country faces.

另一个威胁是经济方面的，我认为所有的经济问题,都和一个核心的问题分不开,就是我们国家面临的,长期财政挑战。

普林斯顿公开课 - 国际座谈会课程节选

We'll come back and discuss it more in a second, but before I do, let me mention that the same model, exactly the same idea, has an application in Economics.

我们一会再深入导论这个问题,在此之前,我再来列举一个模型,是经济学里面一个完全类似的模型

耶鲁公开课 - 博弈论课程节选