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Carbon financial trading is an innovative means of utilizing market mechanisms to promote greenhouse gas emission reduction, which is of great significance for achieving low-carbon, green and sustainable development. And green innovation efficiency is a comprehensive index, which reflects the efficiency of resource and technology allocation in the process of green innovation, as well as the potential and ability to achieve high output. Every leap forward in green innovation is toward cleaner, more efficient, and more environmentally friendly goals, and improving the efficiency of innovation is key to ensuring that the process is sustainable and more conducive to sustainable development and environmental protection. This paper takes 15 provinces and cities in our country as the research object. Based on the perspective of input and output, the Super-efficient SBM model is used to measure the efficiency of green innovation in 15 provinces and cities using Matlab, and the Tobit model is used for empirical analysis. The results show that economic agents utilize resources efficiently in the process of production and innovation, and can balance the relationship between economic development and environmental protection well. CDM projects have a significant negative impact on green innovation efficiency, and the impact of CDM projects on green innovation efficiency may be restricted by a variety of factors.
Zhang et al. (Tue,) studied this question.