We know the early example in sort of Golden Age America, but where else did we see a competitive fringe enter when there was a collusive agreement to keep quantities down?

我们知道美国全盛时期有这样的先例,还有什么行业原来也有产量协议,但新公司进入后却导致协议瓦解呢

耶鲁公开课 - 博弈论课程节选