Analysis of the Impact Mechanism of Smart City Construction on Low Carbon Development Based on Multi Phase DID Evaluation

With the continuous development of information technology and the continuous improvement of urban informatization application level, the construction of smart cities has emerged As a new model for the development of technology enabled cities in the digital age, smart cities play a crucial role in China’s low-carbon transformation However, the current academic community mostly examines smart cities from a qualitative analysis perspective, while few scholars pay attention to the quantitative impact of smart city construction on low-carbon development, and there are even fewer studies exploring its impact mechanism. This paper uses the multi period double difference model to evaluate the implementation effect of three batches of smart city pilots on low-carbon development in China, and conducts mediating effect test and heterogeneity analysis. Smart city construction plays a very positive role in urban low-carbon construction; Smart cities promote low-carbon development of cities by enhancing their innovation capabilities and energy efficiency. In the middle and east cities and non - resource cities, the development of smart cities is more important to the low carbon development.