Optimization Of Supply Chain Layout And Innovation Cooperation Space

At present,important variables with a new round of technological revolution and supply chain adjustment as the core are affecting the rise and fall of countries.How to improve China’s supply chain and innovation level is particularly important.This article examines the spatial optimization of supply chain layout and innovation cooperation after the opening of high-speed railways by constructing a DID model based on data related to supply chain and innovation cooperation partners of listed companies from 2005 to 2019,as well as data on high-speed rail connections and train trips between cities from 2009 to 2019.The study found that:①The opening of high-speed rail has an obvious promoting effect on the supply chain layout and innovation cooperation space optimization.②Under the influence of different supply chain locations,inter-city high-speed rail connectivity has a significant impact on the spatial optimization of suppliers and innovation partners.For customers,urban high-speed rail alone is not enough to change the spatial optimization of customers and innovation partners.It is necessary to promote the spatial optimization of customers and innovation partners by increasing the number of trains between cities.③In terms of innovation cooperation objects,inter-city high-speed rail connectivity can significantly promote the spatial optimization of supply chain and interenterprise innovation cooperation objects.However,when the innovation cooperation objects are scientific research institutions and enterprises,the inter-city high-speed rail connection has no obvious effect on the spatial optimization of supply chain and enterprise-scientific research institutions innovation cooperation objects.④In terms of urban externalities,when there are central cities in the cities where enterprises and their supply chains or innovation partners are located,the opening of high-speed rail will help promote the optimization of supply chain layout and innovation cooperation space.⑤When listed companies are state-owned enterprises and located in the Yangtze River Delta urban agglomeration,the opening of high-speed rail will be more conducive to the optimization of supply chain layout and innovation cooperation space.This article uses the concept of "location entropy" to characterize the spatial optimization of enterprise supply chain layout and innovation cooperation,and uses listed company city relationship data to test the impact of high-speed rail opening on enterprise supply chain layout and innovation cooperation spatial optimization.To some extent,it enriches the existing method system for optimizing supply chain layout and innovation cooperation space,and expands the theoretical framework for optimizing supply chain layout and innovation cooperation space after the opening of high-speed rail.Providing a feasible path for optimizing the layout of China’s supply chain and innovation cooperation space,promoting the transformation of innovation achievements,plays an important role in enhancing the resilience of China’s supply chain and assisting in the improvement of China’s innovation level.