Since the global economy has entered a new era of “digital” global value chain,manufacturing trade has gradually shifted from traditional large-scale centralized production to smaller and more dispersed “intelligent” value chain.And the distribution of manufacturing industry in the world tends to regional and localized production.Under the prevalence of trade protectionism,developed countries continue to strengthen the blockade of core technologies,and developing countries urgently need to break through the dilemma of “low-end locking”.Enterprises will reduce their dependence on imported intermediate products,turn to domestic research and development,and improve the efficiency of innovation system to ensure the competitiveness of intermediate products to play an important role in fully participating in the global value chain of manufacturing.In this thesis,the relationship between intermediate product innovation and global value chain status is taken as the research object,and the core variables are measured and the relationship between them is empirically studied.Firstly,the innovation intensity index of intermediate products and the position index of global value chain are constructed by the application data from ISIC Rev.3 industry R&D data in OECD database and the input-output table of WIOD(2016)database.By calculating the innovation intensity of intermediate products of 13 industries in 42 countries from 2000 to 2014,it is found that the United States and Japan have invested the most in the innovation of intermediate products,but the innovation intensity of intermediate products in China has been on the rise,with the fastest growth rate.Secondly,as a whole,the developed countries have been in the upstream of the global value chain,and their status index is much higher than that of most developing countries.In the benchmark regression,the innovation of intermediate products has a positive role in promoting the position of manufacturing industry in the global value chain.It shows that for developing countries locked in the low end of global value chain,increasing innovation investment in intermediate products is a reliable way to break through the bottleneck.On the basis of benchmark regression,this thesis also studies the moderating effects of high-skilled labor,expansion of local market scale and internalization of intermediate products in the promotion of intermediate product innovation to global value chain.The results of adjustment mechanism show that the high-skilled labor structure and the expansion of local market scale will play a positive role in promoting the upgrading of global value chain by the innovation of intermediate products,while the internalization of intermediate products will play a negative role in the promotion process.It emphasizes the importance of innovation in intermediate products,while not ignoring foreign markets.We should make full use of domestic and international market resources to form a benign interaction mechanism and construct a global specialized vertical division of labor system supported by domestic industries.The results show that the promotion of intermediate innovation is also applicable in developed countries,and it is more effective in high-tech intensive industries.In summary,with the new trend of localization and customization in global value chain,developing countries can try to solve the long-term dependence on intermediate products in developed countries from the perspective of intermediate product innovation.This thesis puts forward relevant policy suggestions: building the independent enterprises innovation system,improving the intellectual property protection policy,strengthening the cultivation of high-skilled talents,broadening the domestic potential market,and promoting the benign interaction between domestic and foreign resources. |