来自《耶鲁大学开放课程：博弈论 第7集 第7集》

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  somewhere between monopoly and perfect competition.
  一个介乎于垄断和完全竞争之间的情形
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  So we'd like an outcome that looks a little bit like Cournot,
  我们想要一个跟古诺有点像的结果
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  but we'd like the strategy set to be prices,
  但我们希望通过策略来定价
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  and this is going to do the trick.
  这就需要一些技巧了
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  This is going to turn out to do the trick
  你们要在家庭作业中
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  as you'll find out in your homework assignment.
  解决这个问题
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  So how are we going to model this on the homework?
  那么我们作业中要如何建立模型呢
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  The way we're going to model differentiated products
  我们建立差异产品模型的方法
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  is to imagine, just to take a simple example,
  想象一下 举个简单的例子
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  imagine a city and this city has one long straight road through it.
  想象一个被一条直路贯穿的城市
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  So this city is not a city in New England,
  所以这不是在新英格兰的城市
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  it's a city in the Midwest,
  它是美国中西部的城市