The way we're going to model differentiated products is to imagine, just to take a simple example, imagine a city and this city has one long straight road through it.

我们建立差异产品模型的方法,想象一下,举个简单的例子,想象一个被一条直路贯穿的城市

耶鲁公开课 - 博弈论课程节选

So leaving aside the specific example of beer, you think about some product that has some dimension on which it varies, and we can use this model to see how competition is going to work in that market.

把啤酒的例子放在一边,你们自己想一些在某种程度上,有所不同的产品,我们使用这个模型来研究,这个市场的竞争是怎样的

耶鲁公开课 - 博弈论课程节选