Measurable Dynamic Gains from Trade
研究贸易自由化如何通过影响人力资本和物质资本的积累，在静态效应之外产生可衡量的动态产出和福利收益，且该收益大小取决于外部规模经济的重要性。
Productive factors such as human and phyaical capital are accumulated and trade can affect the steady-state levels of such factors. Consequently, trade liberalization will have dynamic effects on output and welfare as the economy moves to its new steady state, in addition to its usual static effects. The output impact of this dynamic effect is measurable and appears to be quite large. The welfare impact of this dynamic effect is also measurable. The size of this dynamic gain from trade depends on the importance of external scale economies.