I think most of us don't believe that two firms is enough to make it a perfect competition, that the regulator shouldn't worry about the third firm.

我想大多数人不相信两家公司,就足够产生完全竞争,不相信监控者不必调查第三家公司

耶鲁公开课 - 博弈论课程节选

And we did a third thing, which we tried to match this up to the economic intuition about monopoly, and perfect competition, and demand curves, and so on.

我们使用的第三个方法,我们尝试将它和,经济直觉联系起来,如垄断,完全竞争和需求曲线等等

耶鲁公开课 - 博弈论课程节选