Research On The Source Of Beijing-Tianjin-Hebei Economic Growth From The Perspective Of Green Productivity

The coordinated development of Beijing-Tianjin-Hebei is one of China's current three major strategies.In recent years,cooperation between the three places has been continuously strengthened.The coordinated development of Beijing-Tianjin-Hebei has been strongly supported by national policies and has achieved remarkable results.However,while the Beijing-Tianjin-Hebei region has achieved remarkable development results,it has also paid huge resources and environmental costs.The contradiction between economic development and resources and environment has become increasingly obvious.Resources and environmental constraints have restricted the economic growth of Beijing-Tianjin-Hebei.The research on the source of economic growth in the Beijing-Tianjin-Hebei region is related to the economic development of the entire region and plays a pivotal role in accelerating the process of optimizing economic growth throughout the region.Based on the perspective of green total factor productivity?GTFP?in Beijing-Tianjin-Hebei region,this paper conducts a survey on the economic growth sources of the three regions of Beijing,Tianjin and Hebei.Through the analysis of the green total factor productivity of Beijing-Tianjin-Hebei economic growth and the source of economic growth of the three regions,To provide a reference for further promoting the sustained,healthy and efficient growth of the economy in the Beijing-Tianjin-Hebei region.The production function used to measure the green total factor productivity is based on the extended function of the Cobb Douglas production function.The production function is modified after the potential coefficient is modified.The actual GDP,capital stock and employment in 2005-2016 are selected from Beijing,Tianjin and Hebei.Panel data of five indicators of water consumption and CO₂ emissions,and calculated and analyzed the potential effect coefficient,comprehensive potential effect coefficient and green total factor productivity of various input factors in the three regions of Beijing,Tianjin and Hebei.On this basis,the contribution of each factor to economic growth is further measured,and the source of economic growth in Beijing,Tianjin and Hebei is analyzed based on the measured contribution.The results show that:First,in these 12 years,the capital factor coefficient of Beijing's capital factor is significantly lower than that of Tianjin and Hebei Province.The energy factor effect coefficient is significantly higher than that of Tianjin and Hebei,labor factor and resource element.The potential efficiency coefficient is also higher in the three regions;the potential effect coefficient of the four input factors in Tianjin is in a higher position in the three regions;the potential efficiency coefficients of the three elements of labor,resources and energy in Hebei Province are significantly lower than In Beijing and Tianjin,the potential factor of capital factor is the highest among the three regions;the comprehensive potential efficiency coefficient between Beijing and Tianjin is not much different,and both are significantly higher than Hebei Province.Secondly,the green total factor productivity of the three regions is basically the same as the comprehensive potential effect coefficient.The difference between Beijing and Tianjin is not significant,and they are significantly higher than Hebei Province.The trend of green total factor productivity is gradually increasing.Beijing The annual growth rate of GTFP in the city is 4.54%,the average annual growth rate of GTFP in Tianjin is 5.46%,and the average annual growth rate of GTFP in Hebei Province is 4.52%.Finally,according to the contribution of factors to economic growth,the sources of economic growth of Beijing,Tianjin and Hebei are analyzed.The analysis results show that the source of Beijing's economic growth mainly depends on factor input and technological progress,and the promotion of economic growth is basically the same.The promotion of economic growth by the input of the two elements is obviously greater than the promotion of economic growth by technological progress.The increase of capital productivity has little effect on economic growth.The increase of resources and energy productivity has certain effects on the promotion of economic growth.Based on the research conclusions of this paper,some relevant policy recommendations are put forward at the end of the article.The first part of the policy proposal is to propose a proposal to increase the intensity of capital formation in view of the low capital productivity.The second part of the policy proposal is to further promote the economic growth of labor productivity,and propose labor-intensive to talent-intensive.Some specific feasibility suggestions for the transformation;the third part of the policy recommendations are aimed at how to maintain and further increase the role of resources and energy productivity in promoting economic growth,and propose some specific feasibility suggestions for enhancing technological innovation and accelerating technological progress;The fourth part of the policy proposal is aimed at the gap between the development of Beijing,Tianjin and Hebei,how to complement each other,further promote the balanced development of Beijing,Tianjin and Hebei,and put forward some specific feasibility suggestion around the topic of strengthening cooperation between Beijing,Tianjin and Hebei.