来自《耶鲁大学开放课程：博弈论 第1集 第1集》

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  Let's just check. If my pair chooses Alpha,
  我们来验证下 如果我对手选α
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  then my choosing Alpha yields 0, Beta -3:
  我选α得0 选β得-3
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  so Alpha would be better.
  所以选α更好
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  But if my pair chooses Beta then Alpha yields -1,
  但是要是我对手选β我选α得-1
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  Beta yields 1: in this case Beta would be better.
  选β得1 此时选β更好
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  So Alpha in this case is better against Alpha,
  所以对方选α时我应该也选α
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  and Beta is better against Beta,
  她选β我也应该选β
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  but neither dominates each other.
  这里没有优势策略
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  So here's a game where we just change the payoffs.
  我们只是改变了参与人的收益
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  We have the same basic structure, the same outcomes,
  博弈的结构 结果都一样
• 
  
  but we imagine people cared about different things
  但是人们在乎的东西不同了
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  and we end up with a very different answer.
  所以我们得到了完全不同的答案