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    经济经纬 2022 Issue (3) :67-77
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    进口产品种类与出口国内附加值率
袁柳
暨南大学 经济学院,广东 广州 510632
    Variety of Imported Products and Domestic Value-added Rate of Export
    YUAN Liu
School of Economics, Jinan University, Guang Zhou 510632, China
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摘要 基于双重差分与工具变量相结合的研究方法,利用2000—2013年中国工业企业和海关贸易数据库,系统考察了进口产品种类与企业出口国内附加值率的关系。研究发现:进口产品种类与企业出口国内附加值率呈U形关系,即未达到门槛值以前,进口产品种类的增加降低了企业的出口国内附加值率;当进口产品种类达到门槛值以后,进口产品种类的增加显著提升了企业的出口国内附加值率。进口产品种类对企业出口国内附加值率的影响存在异质性,不同贸易方式的企业、不同地区的企业以及不同所有制类型的企业进口产品种类对出口国内附加值率的影响存在明显差异。机制检验表明通过企业成本加成和研发创新效应,进口产品种类显著影响了企业出口国内附加值率。因此,为提高企业出口国内附加值率,获得更多国际贸易利得,企业应不断增加进口产品种类;政府则应针对不同贸易方式、不同地区、不同所有制类型采取差异化的进口策略。
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袁柳
关键词进口产品种类   出口国内附加值率   全球价值链   企业异质性   中介效应     
Abstract: Based on the trade data of Chinese industrial enterprises and customs from 2000 to 2013, this paper systematically studies the relationship between the types of imported products and the domestic added value rate of enterprises' exports by using the double difference modal and instrumental variables. The results show that there is U-shaped relationship between the imported product variety and enterprises' export DVAR. That is to say, before reaching the threshold value is, the increase of the imported product variety reduces the enterprises' export DVAR. When the varieties of imported product reach a certain threshold value, the increase of the imported product variety significantly improves enterprises' export DVAR. The impact of the imported product variety on the enterprises' export DVAR has passed the heterogeneity test which means the influence of imported product variety on export DVAR of enterprises with different trade types, enterprises in different regions and enterprises with different ownership types is obviously different. The mechanism test shows that cost-plus effects and R&D innovation effects are the channels through which the imported product variety affects the enterprises' export DVAR. Therefore, in order to increase enterprises' export DVAR and gain more benefits from international trade, enterprises should continuously increase the imported product variety, and the government should adopt different import strategies according to different trade methods, different regions and different types of ownership.
KeywordsImport Product Variety   Domestic Value Added Ration of Export   Global Value Chain   Corporate Heterogeneity   Mediating Effect     
收稿日期 2021-09-20; 接受日期 ;
基金资助:国家自然科学基金青年项目(72003071)
作者简介: 袁柳(1986— ),女,湖北宜昌人,博士研究生,主要从事国际贸易理论与政策、国际经济问题研究。
引用本文:   
袁柳.进口产品种类与出口国内附加值率[J].  经济经纬, 2022,3: 67-77
YUAN Liu.Variety of Imported Products and Domestic Value-added Rate of Export[J]  Economic Survey, 2022,V39(3): 67-77
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