The Impact Of Digital Economy Development On The Upgrade Of Global Value Chain

At the beginning of joining the global value chain,China chose to be embedded at the low end of the value chain,and was suppressed by the technology of the firstmover countries in the value chain.Later,more and more developing countries also join the GVC,which makes the profit margin of Chinese industries in the global value chain continuously compressed,and further intensifies the difficulty of upgrading the global value chain.With the development of digital economy and the penetration and integration of global value chain,the source and distribution space of added value of various industries and sectors of various countries in the value chain have changed to some extent.Facing this new development opportunity,China should try to accurately grasp the influence mechanism of the development of digital economy on the position of global value chain,the rate of added value and the correlation between them.Relying on the digital economy as a new driving force for development,upgrading the global value chain.Firstly,this paper calculates the GVC positions and value-added rates of enterprises in various industries in various countries and China from the macro and micro levels respectively,constructs the value chain curve from the industry level,and comparatively analyzes the shape and position trend of the curve.Secondly,this paper discusses the theoretical mechanism and path selection of the digital economy to promote the advancement of global value chain from two aspects: the rising position of global value chain and the improvement of value acquisition degree.Thirdly,econometric models are constructed from the macro level and micro level respectively to explore the impact of digital economy development on GVC position and value-added rate,and heterogeneity analysis is carried out based on the different characteristics of countries,industries and enterprises.It further tests the comprehensive impact of the development of digital economy on the shape and position of the "smile curve" or "Musashi curve" of the value chain.Finally,it summarizes the impact of digital economy development on the upgrading of global value chain and puts forward some implementation suggestions for China to realize the upgrading of global value chain.Through the research of this thesis,the following conclusions are obtained:(1)From a macro perspective,the shape and trend of value chain curves are different among different industries in the same country and the same industry in different countries.With the increase of years,the length of the value chain curve of Chinese various industries has lengthened,the curve has slowed down,and some of them have a trend of moving down.Moreover,comparing the value chain curves of various industries in China and the US,we find that the value chain curve of the United States is higher than the value chain curve of China in the same industry,this can be seen the overall profit of the United States value chain is higher than that of China.The shape characteristics and trends of the value chain curves of various industries in China at the micro level are similar to the conclusions at the macro level.(2)From the macro empirical research,it is found that: in addition,the development of digital economy will also have a certain impact on the correlation between the global value chain position and the value-added rate of various industries,which can also be interpreted as changing the shape and position of the value chain curve of various industries.Of course,for different countries and industries,the impact of digital economy is different.From the micro empirical research found that: the development of digital economy can promote Chinese enterprises to climb to both ends of the GVC,and help improve the level of added value obtained by enterprises from other countries and industries in the process of participating in the global value chain.,and reduce the value-added benefits of industries in other countries from Chinese enterprises to a certain extent.Of course,there are some differences in the impact of digital economy on enterprises in different regions and industries.In addition,the development of digital economy will also affect the correlation between the overall value-added rate of Chinese enterprises and the upstream and downstream degrees of the value chain,making the value chain curve at the micro level show a certain trend of flattening.