Economists like to talk about the “value chain” of manufacturing. Some things, like sewing shirts, don't take a lot of capital or education or specialised skills. All the way at the other end of the chain you have airplanes, which demand massive plants and a well-trained, well-paid workforce. The original argument for normalising trade with China in 2001 was that it could have the lowest links on the chain, and more developed countries could clip in a little higher.
manbetx20客户端下载 学家喜欢谈论制造业的“价值链”。有些事情，比如缝制衬衫，不需要大量的资金、教育或专业技能。在链条的另一端，你有飞机，需要大量的工厂和训练有素的高薪劳动力。2001年与manbetx3.0 贸易正常化的最初论点是，manbetx3.0 可以占据价值链上的低端环节，而较发达的国家可以占据略高一些的环节。
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