来自《耶鲁大学开放课程：博弈论 第18集 第18集》

• 
  
  we better check that no individual player
  只要证明没有哪个参与人
• 
  
  can do better by deviating.
  能通过单独改变策略获得更好收益
• 
  
  So let's start with Player 1.
  让我们从参与人1开始
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  If Player 1 deviates holding Player 2 and 3 fixed,
  先固定参与人2和3 改变参与人1
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  then Player 1 will be switching the matrix
  的位置 就是矩阵之间做跳转
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  from Matrix A to Matrix B. Is that correct?
  从矩阵A到矩阵B 对吗
• 
  
  So we'll move from this box in the left hand matrix
  所以我们从左边矩阵的这个方框
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  to the equivalent box in the right hand matrix.
  移动到右边这个矩阵对应的方框
• 
  
  Player 1's payoff will go from 1 to 0,
  参与人1的收益从1变为0
• 
  
  so Player 1 doesn't want to deviate.
  所以他不会改变策略
• 
  
  Everyone happy with that?
  明白了吗
• 
  
  Player 1 doesn't want to deviate here.
  参与人1不会改变策略