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经济学原理[br][Alex Tabarrok教授]主讲

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经济增长了吗？[br]今天的人们比四年前富足了吗？

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那么40年前又如何呢？[br]GDP统计数据将帮助我们回答这些问题

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但首先，我们需要做一些变动

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正如前一节视频所讨论的[br]GDP等于所有产品和服务的价值总和

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这就意味GDP可以有两种增长方式

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首先，价格可以增加[br]在这种情况下，GDP数值上升

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