What we did--the core theoretical framework that we had-- was the mean variance theory, which led us to the capital asset pricing model.

我们讲到了投资组合多元化的核心理论框架,即均值-方差模型,之后又讲到了资本资产定价模型

耶鲁公开课 - 金融市场课程节选

I mean,think about the disease model.

我们想一下疾病模式。

哈佛公开课 - 幸福课课程节选

What they mean by that is, if you're a builder and you have this place where you show off your model homes, how many people are coming by to look at your model homes today as potential buyers?

意思就是,如果你是建造商,你有地方展示样板房,预计今天会有多少潜在顾客,来看样板房

耶鲁公开课 - 金融市场课程节选