The Influence Of Patent Quality On The Export Domestic Value-Added Rate

Since joining the WTO,China’s foreign trade has developed rapidly and has become an important driving force for economic growth.However,because the development of my country’s foreign trade has long relied on labor-intensive low-tech enterprises,with the weakening of the demographic dividend,some domestic manufacturing industries have begun to transfer to Southeast Asia,and the sustainable development of China’s foreign trade is under increasing challenge.At present,how to promote the manufacturing enterprises to obtain a favorable position in the global value chain division of labor through the innovation-driven development strategy is an important issue facing the transformation and upgrading of China’s foreign trade.Under the global value chain division of labor system,the export domestic valueadded rate can more accurately reflect the profitability of Chinese enterprises in international trade.Therefore,exploring the relationship between patent quality and export domestic value-added rate of Chinese enterprises is of great significance to implementing innovation-driven policies and improving export domestic value-added rate.In this context,this paper profoundly explores the mechanism of patent quality on the export domestic value-added rate.This paper uses the enterprise patent data and China Customs data from 2000 to 2007,uses the knowledge breadth method to measure the patent quality of enterprises,and explores the impact of patent quality on the export domestic value-added rate through empirical analysis.The research results show that,throughout the sample,the quality of patents plays a significant role in promoting the export domestic value-added rate.In addition,the heterogeneity analysis also found that this kind of impact has heterogeneity in trade types,enterprise ownership,and regions.Meanwhile,further mediation model test shows that the "productivity effect" and "relative price effect" are vital channels through which patent quality affects the domestic value-added rate.On the one hand,the increase in the investment in technological factors of enterprises has promoted the improvement of the total factor productivity of enterprises,thus making the export domestic value-added rate increase;On the other hand,the improvement of the quality of enterprise patents can increase the types and quantity of domestic intermediate products,thereby reducing the acquisition cost.As a result,the price of domestic intermediate products relative to foreign intermediate products has fallen,and enterprises use more domestic intermediate products in the production process,promoting the export domestic value-added rate.Finally,based on research findings,this paper puts forward suggestions from four aspects:R&D subsidies and achievement protection,promotion of industry-university integration,talent introduction support,and financing convenience.It provides a theoretical reference for the country to implement the innovation-driven policy accurately and promote the transformation and upgrading of China’s foreign trade enterprises.