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How density economies in international transportation link the internal geography of trading partners

机译:国际运输中的密度经济如何联系贸易伙伴的内部地理环境

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摘要

We present a two-country four-region model of new economic geography that partly endogenizes the level of trade costs. Contrary to the existing literature, we assume that international unit shipping costs depend on the volume of trade, due to the presence of density (dis)economies. We show that agglomeration (or dispersion) within a country may be induced by the geography of the other country through the channel of trade. Furthermore, whereas density economies may give rise to multiple equilibria and catastrophic agglomeration in both countries, density diseconomies lead to a smooth agglomeration process exhibiting a unique stable equilibrium.
机译:我们提出了一种新的经济地理环境的两国四地区模型,该模型部分地内化了贸易成本的水平。与现有文献相反,我们假设由于密度(不)经济的存在,国际单位运输成本取决于贸易量。我们表明,一国内部的集聚(或分散)可能是由另一国的地理环境通过贸易渠道引起的。此外,虽然密度经济可能在两国引起多重均衡和灾难性的集聚,但密度不经济导致集聚过程平稳,呈现出独特的稳定平衡。

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