The Impact of Smart City Construction on Common Prosperity:Empirical Evaluation Based on Double Machine Learning
Digital technology empowers cities with the driving forces needed for development through digital media.On this basis,the smart city,which is a new model of urbanization and information technology integration and development,has been formed.The urban development model constructed by smart cities can fully stimulate the potential of domestic demand and development momentum,providing new ideas for promoting common prosperity in China.Based on the three batches of national smart city pilot policies as a quasi-natural experiment,this paper uses the fixed-base extreme difference entropy weighting method to measure the level of common prosperity in 285 cities in China from 2010 to 2020,and use the dual machine learning method to carry out a theoretical and empirical analysis of the dynamic effects,paths,and heterogeneity of the smart city construction to promote the common prosperity of the cities.Research has shown that,the construction of smart cities has a significant positive effect on the level of common prosperity,and this effect is more pronounced in cities with strong human capital,higher levels of financial sector development and better information infrastructure.The promotional effect of smart city pilot construction on the level of common prosperity cannot be achieved overnight,and there is a lag,i.e.,it takes a certain period to develop smart city construction to promote common prosperity.Alleviating resource mismatch,enhancing urban innovation and entrepreneurial vitality,and optimizing industrial structure are important transmission mechanisms for smart city construction to promote common prosperity.On this basis,policy recommendations are put forward to promote the construction of smart cities to enhance the level of common prosperity.The research content enriches the empirical evidence and empirical research on promoting urban common prosperity,and has theoretical and practical reference value for promoting urban digitization development and improving regional common prosperity.