来自《耶鲁大学开放课程：心理学导论 第10集 第10集》

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  And over time they develop a preference
  过一段时间它们就对那些
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  for the experimenter that shows them one initially,
  一开始展示一个的实验人员产生了偏爱
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  suggesting that they are being subject to framing effects
  这说明它们被框架效应影响了
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  or choices relative to a reference point.
  或者说它们的选择被参考物影响了
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  A different sort of demonstration is the "endowment effect."
  另一种例子是禀赋效应
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  This is a robust and very interesting effect.
  这是一种非常强效且有趣的现象
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  Here's the idea.
  大意是这样的
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  I show you something like a cup or a chocolate bar
  我向你展示一个杯子或者一块巧克力
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  and I say,
  然后说
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  "How much will you give me for this chocolate bar?
  你会给我多少钱来买这块巧克力
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  It looks like you're pretty hungry.
  你看起来很饿
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  How much will you give me for this chocolate bar?"
  你会给我多少钱来买这块巧克力