来自《耶鲁大学开放课程：博弈论 第7集 第7集》

• 
  
  think of this as a policy thing.
  想象这是一个政治事件
• 
  
  So if you believe this model,
  如果你们相信这个模型
• 
  
  if you think is really an accurate model of society,
  如果你们认为这是一个正确的社会模型
• 
  
  and you're a regulator working in the Department of Justice,
  而你们是在司法部工作的管理者
• 
  
  or you're a judge trying to judge some monopoly case,
  或者你们是正在审理垄断案件的法官
• 
  
  or you're a commissioner on the European Court
  或者你们是欧洲法院的委员
• 
  
  or whatever trying to judge some competition case,
  或者其他需要审判竞争案件的角色
• 
  
  all you'd worry about is getting one competitor in each market,
  你们只需关心市场中的任意一个竞争者
• 
  
  two firms in each market and you'd be done.
  即每个市场只考察两家公司就够了
• 
  
  You wouldn't worry about entry beyond two.
  你们不用关心除了这两家以外的公司
• 
  
  Now my guess is we don't believe that.
  我想有人不相信
• 
  
  We'll come back to that in a second,
  我们待会回来讲它