The effects of policies on location of economic activities and welfare under there are externalities

本研究在国际贸易成本不对称的条件下，构建了企业区位选择与政策效应的理论模型。一项研究是在一个国家内有多个地区的情况下调查区域出口。另一个是研究两个国家之间的补贴竞争对企业区位的影响。在这两个研究中，我发现，在不对称的国际贸易成本下，企业的位置取决于贸易成本。此外，经济条件对每个地区或国家的生产的影响是不同的。

In this study, theoretical models with asymmetric international trade costs are constructed in order to investigate location of firms and effects of policies.This study consists of two studies. One in a study to investigate regional exports under the case in which there are multiple regions within a country. The other is a study to reveal the effects of a subsidy competition between two countries on location of a firm. In both studies, I find that under asymmetric international trade costs, the locations of firms depends on the trade costs. Moreover, the effects of economic conditions on production in each region or country are different.