中欧制造业产品内贸易对中国绿色技术溢出效应的影响

为分析贸易对绿色技术的传递作用，基于中间品贸易的技术溢出机制，选取2000—2019年中欧15个细分制造业数据，使用OECD环境技术专利数据库计算欧盟和中国绿色技术知识存量，从产品内贸易视角研究垂直专业化分工对中国绿色技术溢出的影响。结果表明：第一，产品内贸易具有显著正向溢出效应，且通过垂直专业化分工调节，绿色技术的行业溢出效应进一步放大；第二，相较于进口，产品内出口通过产业规模集聚表现出更为显著的出口学习效应，非物化型前沿环保技术更容易通过产品内出口向中国转移；第三，专业化分工对制造业内绿色技术创新能力的推动作用存在行业异质性。因此，中国应加强与环保技术领先国的产品内贸易，通过模仿学习不断吸收物化于产品中的环保工艺，从而推动本国绿色技术迭代和更新。

Research on the Influence of China-Europe Manufacturing Intra-product Trade on Spillover Effect of China's Green Technology

In order to study the transmission mechanism of green technology in trade, this paper selected input and output data of 15 manufacturing subsectors in China and Europe from 2000 to 2019, used OECD database of environmental Technology patents to calculate the knowledge stock of green technology in the EU and China, and studied the impact of Vertical Specialization on China's green technology spillover from the perspective of intra-product trade. Empirical research shows that: first, intra-product trade has significant positive spillover effect, and the industrial spillover effect of green technology can be further amplified through the adjustment of VS; Second, compared with imports, intra-product exports have achieved a more significant "export learning effect" through industrial scale agglomeration. Non-materialized cutting-edge environmental protection technologies are easier to be transferred to China through intra-product exports. Thirdly, the role of VS in promoting green technology innovation ability in manufacturing industry has industry heterogeneity. Therefore, China should increase intra-product trade with leading countries in environmental protection technology and promote the iteration and update of its own green technology by imitating and learning the environmental protection technology that is constantly absorbed into products.