Digital Economy and Green Economy Efficiency:Impact Mechanisms and Spatial Spillover
With the progress of digital technology and the continuous extension of the application scope,the digital economy has become a new engine to boost the transformation of the green economy and inject new momentum to enhance green economy efficiency.Based on the panel data of 30 provinces in China from 2011 to 2021,this paper uses the entropy method to calculate the development level of the digital economy,and adopts the Super SBM-DEA model to measure green economy efficiency.Through constructing two-way fixed effect model,mediation effect model,and threshold effect model,the influence and mechanism of the digital economy on green econo-my efficiency are empirically analyzed from multiple perspectives,and the spatial econometric model is further constructed to discuss its spatial spillover effect.The study finds that the digital economy can significantly improve green economy efficiency and there is regional heterogeneity in this influence.Strengthening green technology innovation is an important mechanism for the digital economy to enhance green economy efficiency.With the development of the digital economy and the enhancement of research and development intensity,there is a marginal increasing effect of the impact of the digital economy on green economy efficiency.Besides,there is a positive spa-tial spillover effect of the impact of the digital economy on green economy efficiency.Based on the above conclusions,this paper puts forward suggestions from the aspects of playing the role of digital economy engine,cultivating green technology innovation ability,in-creasing R&D investment,and strengthening regional linkage,to achieve a win-win situation of economic and ecological benefits and improve green economy efficiency.
digital economygreen economy efficiencygreen technology innovationR&D intensityspatial spillover effect
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