题目内容
Empirical studies conclude that U.S. environmental policies are a more important determinant of trade performance than capital, raw materials, labor skills, and wages.
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Although the theory of comparative advantage explains trade in manufactured goods, it has no explanatory value fur trade in business services.
Most developing countries have pollution-control laws and enforcement policies that are more stringent than those of the major industrial countries.
When transportation costs are added to our trade model, the low-cost exporting country produces less, consumes more, and exports less than that which occurs in the absence of transportation costs.
When transportation costs are added to our trade model, the degree of specialization in production between two countries increases as do the gains from trade.
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