How have scholars explained why one country may be able to produce a given item more cheaply than another country

How have scholars explained why one country may be able to produce a given item more cheaply than another country

Read https://research.stlouisfed.org/publications/page1-econ/2017/11/01/does-international-trade-create-winners-and-losers/ and Answer:

1.How have scholars explained why one country may be able to produce a given item more cheaply than another country (two to four sentences)?

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2.Does such a [current] deficit necessarily indicate that international trade is detrimental to the average American (two to four sentences)?

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3.Which political and/or economic argument(s) provide a basis for why “third parties… that sell products that cannot compete in a global marketplace” are hurt by free trade (two or three sentences)?

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4.How do the authors of the article explain the perception that free trade is harmful overall (one sentence)?

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5.Could the Trade Adjustment Assistance Program fall into one of these categories (one or two sentences)

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