There's a reason why the first attempt to even write about international law comes at this period.

这也就是为什么在这个时期,会有人在历史上第一次尝试撰写国际法

耶鲁公开课 - 欧洲文明课程节选

So this is really the first attempt, way back in the nineteenth century to study a market that's somewhere in the middle, where it happens most markets are there are two firms.

因此这就是它的第一个诱人之处,我们要回到十九世纪,去研究一个介于两者之间的市场,那个年代大多数市场都只有两家公司

耶鲁公开课 - 博弈论课程节选