| During the 30 years of reform and opening up,China’s economy has developed rapidly,and the level of sulfur dioxide emissions has continued to increase.The resulting environmental problems have become increasingly serious.In order to control sulfur dioxide emissions,the Chinese government has adopted a series of targeted measures.Based on the panel data of 286 cities at prefecture-level and above in China,this paper uses the generalized DID method to empirically test the impact of the "Eleventh Five-Year Plan" on urban industrial sulfur dioxide emissions,and on this basis,the exponential decomposition method is used to decompose the changes in sulfur dioxide emissions into Scale,structure,and technical effects,analyze the contribution of various factors to sulfur dioxide emission reduction,and explore the channels through which the "Eleventh Five-Year Plan" emission reduction measures can achieve sulfur dioxide emission reduction combined with measurement inspection.Taking into account the heterogeneity of cities and regions,this article decomposes the samples into first-and second-tier cities and third-tier cities,eastern and central regions,and western regions to explore whether the emission reduction effects of environmental regulations and their mechanisms are different in different cities or different regions.The research results show that the "Eleventh Five-Year Plan" has significantly reduced urban industrial sulfur dioxide emissions,and the reduction is mainly achieved through scale and technical effects;among different cities,the "Eleventh Five-Year Plan" emission reduction measures have significantly reduced the third-tier and the emission reduction effect of urban industrial sulfur dioxide is not obvious in the first-and second-tier cities;among different regions,the emission reduction measures of the "Eleventh Five-Year Plan" have achieved remarkable results in the eastern and central regions,but not obvious in the western regions. |
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