Research On The Impact Of Co-Agglomeration Of Manufacturing And Producer Services On Carbon Emission Intensity

Industrial agglomeration is an important factor for sustained economic growth.Its scale effect not only promotes regional economic development,but also produces undesirable outputs such as pollutant(carbon)emissions.Since the last 40 years of reform and opening-up,China has made remarkable economic achievements.In 2010,China became the world’s second largest economy entity and a world major economic power.Low-end and traditional manufacturing industries are gradually shifting to high-end and emerging industries.The service industry is developing rapidly,and the trend of economic agglomeration is obvious.During the “14th Five-Year Plan” period,China is moving to a stage of high-quality development.There’s an internal needs to promote comprehensive green transformation of economic and social development,and it is also a method to solve the principal contradiction in today’s society.To guide service industry develops rapidly,China has already introduced a number of reform measures,and speed up the integration of manufacturing industry and producer services promote the coordination of co-agglomeration.Meanwhile,China became the country with the most carbon emissions in 2007.To deal with this problem,China continues to transform its development model;its carbon emission intensity is declining year by year.In 2020,China put forward a peak carbon emission reduction commitment,and is actively implementing the "1+N" system construction.This shows that China is experiencing the inevitable agglomeration phenomenon in the pursuit of high-quality economic development,and is also actively fulfilling the national commitment to address global warming.In this context,it is a practical problem worth exploring to clarify the impact way of co-agglomeration on carbon emission intensity,examining the relationship,to find a "win-win" path for economic growth and energy saving.This paper mainly focuses on the impact of co-agglomeration of manufacturing and producer services on carbon emission intensity.Firstly,the relevant literature at home and abroad is sorted out,the main concepts are defined,and the relevant theoretical basis is introduced.Secondly,Dagum method is used to calculate the current situation and disequilibrium state of co-agglomeration and carbon emission intensity,and the regional gap of carbon emission intensity and its main causes are analyzed in space.Thirdly,use the SYS-GMM method to test the direct impact of co-agglomeration on carbon emission intensity.Through the analysis of mechanism and mediation effect test,to explain the mechanism of human capital,industrial structure upgrading and technology level.Fourthly,carbon emissions are introduced into the output density production function proposed by Ushifusa and Tomohara(2013)to construct a theoretical model of the impact of agglomeration effect on carbon emission intensity.The spatial effect of different levels of co-agglomeration on carbon emission intensity is analyzed theoretically and empirically tested by using spatial econometric regression model.Finally,the main conclusions of the study are summarized and corresponding policy suggestions are put forward.The main conclusions of this paper are as follows :(1)Carbon emission intensity continues to decline and shows regional heterogeneity obviously.Within the analysis range,carbon emission intensity decreased from 4.13 tons / 10,000 yuan in 2003 to 2.17 tons / 10,000 yuan in 2019,with an average annual decline of 2.79%.Its overall regional gap is in the "large gap" interval and continues to expand.Intra-regional disparities show a certain degree of volatility,and the impact on the overall regional disparities is stable for a long time.The inter-regional gap shows a trend of continuous increase,which is the main source of the overall regional gap.(2)The level of co-agglomeration is relatively stable,and the regional gap fluctuates repeatedly.Within the analysis range,the co-agglomeration index of the whole country and the three regions fluctuated in a small range from 0.70 to 0.90,showing a stable agglomeration trend.The level of co-agglomeration in different regions showed a ascending trend from west to east,and there is spatial disequilibrium.The intra-regional disparities remain basically unchanged,and their influence on the regional disparities of the overall co-agglomeration level is stable in the long run.The variation range of inter-regional gap is high,and the regional heterogeneity of co-agglomeration is obvious.(3)Co-agglomeration significantly reduces carbon emission intensity.The co-agglomeration of manufacturing and producer services has a significant inhibitory effect on carbon emission intensity,and has passed the robustness test,which proves the reliability of the conclusion.(4)Co-agglomeration has a transmission mechanism on carbon emission intensity.The co-agglomeration of manufacturing and producer services can affect carbon emission intensity through various channels.Specifically,co-agglomeration can reduce carbon emission intensity by improving human capital,by influencing industrial structure upgrading,by improving technological level.(5)Co-agglomeration has spatial spillover effect on carbon emission intensity.The spatial spillover effect of co-agglomeration on carbon emission intensity shows an inverted u-shaped,and co-agglomeration has direct and indirect external effects on carbon emission intensity.Among them,the influence of the level of co-agglomeration in other regions,which represents the indirect effect,on the carbon emission intensity in this region is an important factor to determine the curve relationship.