The Research On The Influence Of Economic Agglomeration On Green Economic Efficiency

The impact of economic agglomeration on China’s green economic development is mainly studied in the paper.Economic agglomeration refers to the relative concentration of economic activities in a geographical region.Green economic efficiency is the economic growth efficiency calculated by taking energy consumption into input variables and environmental pollution as unexpected output factors under the existing framework of TFP analysis.On the basis of the former study of the economic agglomeration impact on economic growth,the research focuses on the negative effects of energy and environmental pollution and the impact of economic agglomeration on the economic efficiency of low pollution and high energy efficiency after the decoupling of economic growth,and improves the study of the impact of economic agglomeration on the green economic efficiency.Systematic review,analysis and comment are firstly carried out on the relevant research of economic agglomeration,environmental pollution,energy consumption and economic growth in the study.Then the influence mechanism of economic agglomeration on economic green development is expounded and the research hypothesis is further put forward from the perspectives of scale effect,technology effect,industrial product structure effect and policy environment effect respectively.Thirdly,the economic agglomeration degree,energy efficiency and green economic efficiency are measured and analyzed,and finally,the effects of economic agglomeration on pollution emission intensity,energy efficiency and green economic efficiency are studied in order to empirically test the proposed research hypothesis.The purpose of the research is to reveal the internal mechanism of the impact of economic agglomeration on economic green development,which is conducted to provide theoretical support and practical reference for promoting China’s ecological civilization construction,sustainable economic development and industrial structure transformation,realizing the transformation from factor expansion to efficiency enhancement,from extensive development to intensive development,from high-speed growth to high-quality development,and from focusing only on economic growth to coordinated development of ecological environment and economy.The theoretical analysis of the effect of economic agglomeration on the efficiency of green economy reveals that: The degree of economic agglomeration has different effects on environmental pollution,energy efficiency and economic growth mode in different stages.Low pollution,low energy efficiency and low-speed economic growth in the non-formation stage of economic agglomeration;high pollution,low energy efficiency and high-speed economic growth in the initial formation stage of economic agglomeration;low pollution,high energy efficiency and high-quality economic growth in the advanced stage of economic agglomeration.The calculation and analysis of the degree of economic agglomeration,energy efficiency and green economic efficiency show that: firstly,the economic agglomeration degree in China has shown a trend of continuous improvement on the whole,and gradually formed an economic agglomeration model with the eastern coastal areas as the center and the central and western areas as the periphery;meanwhile,there are significant regional differences in the degree of China’s economic agglomeration:the eastern coastal areas are significantly higher than other regions,followed by the central region,and the western region is the lowest.The Yangtze River Delta region is still with the highest degree of economic agglomeration in China,and the economic agglomeration degree in Beijing Tianjin Hebei region has maintained a relatively stable growth.Secondly,the overall energy efficiency is also showing a rising trend,and there are significant regional differences,the Yangtze River Delta region has the highest energy efficiency.Thirdly,the efficiency of green economy shows a trend of fluctuating growth by and large,with significant regional differences,Beijing Tianjin Hebei region has the highest efficiency of green economy.The empirical analysis of the impact of economic agglomeration on the intensity of pollution emission shows that the effect of economic agglomeration on the intensity of pollution emission has a significant nonlinear relationship as a whole;with the increase of economic agglomeration,the intensity of pollution emission will first decrease,then increase and then decrease again.Besides,labor productivity,technological progress etc.all have inhibitory effects on the intensity of pollution discharge.The relationship between the level of economic development and the intensity of pollution emission shows that it is promoted first and then restrained,which proves that the Environmental Kuznets hypothesis is significant in China.The results of spatial analysis show that economic agglomeration and pollution emission intensity have significant spatial spillover effect,which is significant in geographical distance and spatial proximity.The intensity of pollution discharge in the previous period also has a significant positive impact on that in the current period of the local and surrounding areas.The research on the impact of economic agglomeration on energy efficiency indicates that there is an obvious nonlinear relationship between economic agglomeration and energy efficiency,that is,with the increasing of economic agglomeration,energy efficiency first decreases and then increases.It also has space effect and space lag effect.The research on the influence of economic agglomeration on green economic efficiency states that there is also an obvious nonlinear relationship between economic agglomeration and green economic efficiency,that is,with the deepening of economic agglomeration,green economic efficiency first decreases and then increases,which also has significant spatial spillover effect and spatial lag effect in the range of spatial proximity and certain economic distance.The inflection point information indicates that most provinces in the central and western regions in China are at the left end of the "U" curve,and the degree of economic agglomeration is far from enough.The main variables of the model have no obvious change when selecting tool variables to further test the endogenous problem,which reflects the good stability of the model.Based on the above conclusions,the main ways to realize the green development of China’s economy are proposed: establish the planning strategy of urban agglomeration;promote economic agglomeration and lead the green economic efficiency with talent agglomeration;take economic agglomeration as the carrier to build and improve the regional innovation system;take economic agglomeration to continuously promote the improvement of people’s living standards;strengthen environmental regulation,deal with the relationship between economic agglomeration,resources and environment;optimize the division of industrial functions in the way of regional economic integration,and realize the deep development of economic agglomeration under the mechanism of spatial cooperation.