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 believe it's clear that it is and that people who do so are people who understand more than the core efficient markets theory.

很明显,能够做到这一点的人必然了解到,比有效市场假设更深层的东西

耶鲁公开课 - 金融市场课程节选

In a sense, the core of Hobbes' theory of sovereignty can be boiled down to the statement that the sovereign and only the sovereign is the source of law.

从一定意义上讲,霍布斯对国家权力的核心观点,可以概述为,君主，而且只有君主,是法律效力的唯一源泉。

耶鲁公开课 - 政治哲学导论课程节选

But, in terms of the basic theory, that's the core concept.

但在基本原理上来说,它是核心概念

耶鲁公开课 - 金融市场课程节选