The decline of the middle class is not only an economic issue, but it is also a political problem. David Autor, a MIT professor, encouraged the polarization of the social hierarchy between high and low classes. The middle class is dynamically declined. He also pointed out the feeble employment growth suddenly became crippled around 2001 and 2002. In the major change in the U.S, technology and market are significant to explain the issue of the loss of middle classes. The technology played a very important role of a frontier of global market. However the domestic local market passed through a different path from the growing global economy. Ironically technology made a massive decline of the middle class in order to strengthen the global economy. China was another huge impact of the loss of domestic local economy and U.S middle classes. U.S-China trade or free trade is not a great opportunity for the U.S as only giant global corporations can benefit from the global marke...
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