The Impact of Open Public Data on Corporate Low-Carbon Technological Innovation: Evidence from China

Open public data is a vital institutional arrangement for overcoming data constraints in corporate low-carbon technological innovation; however, its mechanisms and boundaries remain empirically untested. Using a panel dataset of China’s Shanghai- and Shenzhen-listed A-share firms over the 2007-2023 period, this study employs a difference-in-differences (DID) approach to examine the impact of open public data on corporate low-carbon technological innovation. The results show that open public data has a significant positive effect on corporate low-carbon technological innovation, and the results remain robust across multiple validation tests. Mechanism tests point out that open public data primarily drives corporate low-carbon technological innovation by enhancing government transparency and reducing barriers to factor mobility. The heterogeneity analysis indicates that the positive impact of open public data is more pronounced among firms characterized by higher R&D investment, lower financial constraints, and greater digitalization. Further analysis indicates that open public data also exhibits significant geographic and industry spillover effects, with the geographic spillover following an inverted U-shaped pattern of decay and the industry spillover driven by peer imitation. This paper provides policy references for the development of open public data and the enhancement of corporate low-carbon technological innova-tion.