The innovation efficiency and spatial associations of domestic cities play a crucial role in promoting high-quality eco-nomic development.The"Belt and Road Initiative"(BRI)has facilitated exchanges and resource integration in the field of inno-vation among cities,profoundly impacting the spatial associations of innovation efficiency.This paper,set against the backdrop of the BRI,employed a social network analysis to study the innovation efficiency of 284 prefecture-level cities in China,and ex-plored the impact of the BRI on the innovation efficiency and spatial associations of Chinese cities.The paper used the DEA-Malmquist method to measure the innovation efficiency of each city and constructed a network of innovation efficiency among Chi-nese cities using the gravity model.Through the network indicator analysis,it explored the impact of the BRI on the spatial asso-ciations of innovation efficiency and employed the QAP regression to quantitatively analyze the influencing factors of the innova-tion efficiency network.The study found that:(1)In recent years,the innovation efficiency of Chinese cities has continuously improved,but the gap in innovation efficiency between node cities and non-node cities has widened after the implementation of the BRI;(2)After the implementation of the BRI,the associations of innovation efficiency among cities have significantly strengthened;(3)Factors such as spatial distance,economic development,human capital,openness to the outside world,and government support all have significant impacts on innovation efficiency;and(4)Under the BRI,the spatial associations of the urban innovation efficiency network are mainly reflected in the spillover effects of node cities on surrounding cities.This study will theoretically expand and enrich the research on the spatial associations of innovation efficiency and provide policy recommen-dations for improving innovation efficiency in practice.
Belt and Road Initiativeinnovation efficiencysocial network analysisspatial correlation
万方数据
