Impact of low-carbon pilot cities on surrounding cities

: Innovation is the source of strength for urban development, and LC is the only way for urban development. Affected by factors such as fragile ecology, single industrial structure, weak innovation foundation and geographical disadvantages, low-carbon (LC) pilot policies will hinder technological innovation in resource-based cities, large cities and western cities. The results show that the pilot policy of LC cities has significantly promoted the growth of urban green total factor productivity, but this effect shows typical heterogeneity in different regions; In the eastern pilot cities, it is significantly positive, while in the central and Western pilot cities, it is significantly negative. After decomposing urban green total factor productivity into urban green technological progress and technological efficiency, it is found that the pilot policy of LC city has a significant effect on urban technological efficiency and urban green technological progress. Accordingly, some suggestions are put forward to further promote the LC pilot policy and guide the construction of LC cities.