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Green technology innovation is an effective driving force to achieve the optimization and upgrading of industrial structure. Environmental regulations principally behave in guiding green technology innovation activities. Based on the Super-Sbm-Dea efficiency model with undesirable output, this paper estimates the provincial-level efficiency of green industrial technology innovation (Gtie) in China from the aspects of technology development, technology transformation and industrial innovation value chain (IVC) from 2005 to 2015, and analyzes its dynamic trend with kernel density function. The conclusions are as follows: 1) Gtie is low and on the rise generally, and tends to decrease in the stages of technology development, achievement transformation and industrialization; in the stage of technology development, the gap between the eastern region and other regions of China tends to increase, while Gtie is on the contrary in the other stages. 2) Gtie spatial spillover is obvious. In the traditional panel model, the effects of command and public environmental regulations are obvious, while the roles of FDI and market regulations are opposite, and the impact of openness and economic development level is not significant. 3) Based on the analysis of Durbin model, market, public regulations and openness improve the efficiency directly. However, economic development level shows significant inhibition effect, while the role of the command regulations and FDI are not significant.

How Environmental Regulations Affect the Efficiency of Green Technology Innovation?