Since the reform and opening up,China’s economy is developing overwhel mingly,but the extensive development model formed for a long time is deeplyrooted,which not only promotes the rapid growth of regional economy,but al so causes great pressure on the regional ecological environment.How to effecti vely promote the regional economy to achieve green sustainable development h as become a key breakthrough to solve the problem of economic growth and e nvironmental protection.In recent years,with the deepening of industrial refor m and technological progress,the integrated development mode of producer ser vices and manufacturing industry has further injected new vitality into the pro motion of industrial transformation and economic development in the region,an d also provided a new path to promote the regional economy to achieve greentransformation and enter the high-quality development stage.Therefore,it is o f great practical significance to study the impact of collaborative agglomerationof producer services and manufacturing on the efficiency of green economy.Based on the spatial perspective of collaborative agglomeration of producer ser vices and manufacturing(hereinafter referred to as the two industries),this pap er systematically explores the spatial dependence and spatial difference of colla borative agglomeration of producer services and manufacturing on the efficienc y of green economy from both theoretical and empirical aspects.Firstly,based on the new economic geography theory,externality theory,spatial interaction theory and sustainable development theory,this paper deeply explains the mechanism of the impact of the two industries on the green economic efficiency.On this basis,the paper further analyzes the green technology innovation and the marketization level on the green economic efficiency of the collaborative agglomeration of the two industries Then,the paper uses the inter provincial spatial panel data from 2004 to 2018 to measure the degree of collaborative agglomeration and green economic efficiency of producer services and manufacturing industries in30 provinces of China by using the inter provincial spatial panel data from 2004 to2018.The results of 2004,2018 and 15 years mean are visualized and spatial visualization and spatial visualization are applied to the results of 2004,2018 and 15 years respectively Then,the spatial spillover benefits of the collaborative agglomeration of two industries on green economic efficiency are analyzed by using spatial lag model(SAR),and the spatial coordination effect of green technology innovation and market level is tested.Further,based on the perspective of regional heterogeneity,GTWR model is used to analyze the spatial spillover efficiency of two industries The effect of the coordinated agglomeration of two industries on the green economic efficiency.The results are as follows: Firstly,from the perspective of temporal and spatial pattern evolution of measurement variables,firstly,in terms of temporalcharacteristics,the number of provinces with high level of collaborative agglo meration of two industries and green economy efficiency is increasing from 2004 to 2018;secondly,in terms of spatial distribution,there is a decreasing gra dient pattern in the East,the middle and the west,and the gap between region s is expanding;finally,in terms of spatial correlation,there is a "high high" re lationship-Therefore,it can be seen that the evolution characteristics of the sp atial and temporal pattern of the two industries’ collaborative agglomeration andgreen economic efficiency are similar;Secondly,from the regression results of the spatial lag model,the two industries’ collaborative agglomeration can im prove the green economic efficiency of the region,but also has a positive "de monstration effect" on the neighboring regions;Thirdly,the level of green tech nology innovation,marketization and the development of green economy The i nteraction terms of the two industries’ collaborative agglomeration are significan tly positive,which indicates that the level of green technology innovation and marketization has a positive role in promoting the impact of the two industries’collaborative agglomeration on the efficiency of green economy;Fourthly,fro m the results of spatio-temporal geographically weighted regression,the impactof the two industries’ collaborative agglomeration on the efficiency of green e conomy is significantly different under the spatio-temporal dimension It can befurther classified into 12 groups,which has a strong guiding significance for t he implementation of industrial spatial linkage development.Based on the abov e conclusions,this paper puts forward some policy suggestions and research pr ospects,such as optimizing the industrial spatial layout,stimulating the vitality of green innovation,promoting market-oriented reform,and formulating differen tiated development strategies. |