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在异质性企业贸易理论基础上,针对移民网络对出口二元边际的影响构建理论模型,并进行实证检验,结果发现:随着我国海外移民存量的增加,移民网络对中国出口贸易及集约边际具有显著促进作用;高技能移民对出口二元边际的影响要远高于非技能移民;移民网络对欠发达国家、最不发达国家的集约边际促进作用大于发达国家;从产品类型看,移民网络对中间产品出口集约边际促进作用最大;对于所有类型的国家和产品,移民网络对扩展边际作用均为负向。应发挥我国移民网络克服贸易壁垒的作用,引导移民对国内新产品消费,关注我国海外留学生的布局;实施多元化市场战略,开拓经济规模较大但人均GDP水平不高的新市场;利用移民网络提升高端中间品的出口,促进出口贸易结构升级和中国产业升级。
On the basis of the heterogeneous enterprise trade theory, aiming at the influence of immigration network on the duality of exports, a theoretical model is established and tested empirically. The results show that with the increase of overseas immigrants, the immigration network influences China’s export trade and the intensive margin The impact of high-skilled immigrants on the dual border of exports is far higher than that of unskilled immigrants; the intensive marginal promotion effect of immigrant networks on less-developed and least-developed countries is greater than that of developed countries; in terms of product types, immigration networks The marginal contribution to the export-intensive promotion of intermediate products is greatest; for all types of countries and products, the immigration network has a negative effect on the expansionary marginalization. We should give play to the role of our immigration network in overcoming trade barriers, guide immigrants in spending on new domestic products and pay attention to the layout of overseas students in China. We should implement a diversified marketing strategy to open up new markets with large economies and low levels of per capita GDP, and use immigration networks Enhance the export of high-end intermediate goods, promote the upgrading of export trade structure and upgrade China’s industry.