来自《耶鲁大学开放课程：金融理论 第5集 第5集》

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  he's just bought the corn, let someone else plant it,
  他只是买了种子 雇人来种植收割
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  let someone else harvest, paid all those guys virtually
  最初播种的时候资本家不付劳工费
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  nothing at the beginning and a lot at the end,
  而收获后赚到钱才付劳务费
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  he's gotten profit for doing nothing just like when you lend
  资本家就是不劳而获
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  money, so the profit divided by the
  就像放贷款获取分红
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  initial outlay, that was the rate of interest.
  利率就是利润占初始投资的比例
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  And so Marx said that a capitalist, he could put his
  马克思理论讲 资本家可以把钱放在银行
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  money in his bank or he could run this farm and make profit
  或者经营农场之类
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  this way.
  通过上面我们讲的方法获利
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  So the money, interest in the bank would have
  银行的利率最后要和
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  to turn out to be the same as this rate of profit otherwise
  他经营农场的利润率基本相同
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  he'd put all the money in the bank.
  否则他就把钱放在银行和不投资了