全球价值链下技术创新对出口贸易收益的影响研究

Research on the impact of technological innovation on export trade gains under global value Chain

全球价值链背景下,增加值贸易统计体系为国家间贸易利得提供了更为客观的核算框架,本文基于世界投入产出数据采用WWZ法,计算中国制造业行业获取的出口贸易收益,并利用中国2003-2014年16个制造业行业面板数据分析了技术创新对出口贸易收益的影响。研究发现技术创新显著促进了制造业出口贸易收益增加;进一步研究发现,技术创新通过行业出口产品多样性影响了制造业出口贸易收益获取;区分行业类型,发现资本密集型行业技术创新显著促进了出口贸易收益增加;区分技术创新投入和产出,发现行业技术创新产出的影响依然显著。因此,全球价值链下中国应该继续加强制造业技术创新,改善出口产品多样性,推动我国贸易收益获取水平提升。

In the context of global value chain,value-added trade statistics system provides a more objective accounting framework for trade gains.Based on the world input-output data,this paper uses WWZ method to calculate the exported domestic value-added by China's manufacturing industry.Moreover,using panel data of 16 manufacturing industries in China from 2003 to 2014,this paper analyzes the impact of technological innovation on export trade gains.It is found that technological innovation promotes the export trade gains;technological innovation affects trade gains through industry export product diversity;technological innovation in capital-intensive industries significantly promotes the increase of trade income;technological innovation output still has a significant impact on trade gains.