| Since the reform and opening up,China’s economy has grown rapidly and achieved remarkable achievements.However,the long-term extensive economic growth pattern has led to increasingly prominent problems of accumulated resource constraints and environmental pollution,the green economic efficiency is low,and green development is facing Challenges.Since the 18 th National Congress of the CPC,our Party and Country have attached great importance to the issue of green development.The construction of ecological civilization in the overall layout of socialist modernization was included in the report of the 18 th National Congress of the CPC.The Fifth Plenary Session of the 18 th CPC Central Committee regarded green development as one of the five development concepts.The 19 th National Congress Report further elevated the construction of ecological civilization to a millennium plan,with emphasis on promoting green development and building beautiful China.In March 2019,Premier Li Keqiang put forward specific requirements for China’s green development and ecological civilization construction from three aspects of pollution prevention,environmental protection industry development and ecosystem restoration,and made special arrangements in his "Report on the Work of the Government".In October 2019,the Fourth Plenary Session of the 19 th Central Committee further proposed to adhere to and improve the system of ecological civilization system,and made requirements for the establishment and improvement of systems for ecological environment protection,restoration and efficient use of resources.Green economic efficiency is the economic efficiency after comprehensive consideration of economic growth,resource consumption and environmental pollution,so it is the core and essential embodiment of green development.In the new era,it is the common expectation of the people in the whole country to solve the problem of resource and environment constraints driven by innovation,improve green economic efficiency and realize green development.It is also an inevitable requirement for the construction of a high-quality modern economic system.At the same time,China has been actively involved in the global digital economy,the new generation of information and communication technologies such as 5G,big data,cloud computing and artificial intelligence have developed rapidly and made great achievements.In December 2018,MIIT distributed 5G spectrum resources to China Mobile,China Unicom and China Telecom.China officially entered the 5G era.In 2019,5G network will be piloted in 18 cities including Beijing,Shanghai,Guangzhou,Shenzhen and Wuhan,new progress has been made in the research and development of 5G technology.At the same time,new breakthroughs have been made in the development of information and communication technologies such as big data,cloud computing and artificial intelligence,which have had a profound impact on economic and social development.Based on this background,how will the improvement of information and communication technology affect green economic efficiency? Moreover,due to the difference in the scale of information and communication technology talents,technological innovation and economic development level in the three major regions of China,how does information and communication technology affect the green economic efficiency in each region? In-depth study this problem is of great theoretical and practical significance for improving green economic efficiency in various regions of our country,promoting green development and meeting the inevitable requirements of people for a better life.We study the impact of information and communication technology on green economic efficiency and its regional differences.Firstly,based on combing the existing literature,it proposes to empirically study its impact on green economic efficiency from the perspective of information and communication technology,and analyzes the regional differences of the impact.Then find the theoretical support,construct the theoretical analysis framework of this paper,and put forward the research hypothesis.Finally,using the 13 th to 39 th China Internet Development Statistics Report,2004 to 2018 China Statistical Yearbook,China Environmental Statistics Yearbook,China Energy Statistics Yearbook,China Demographic and Employment Statistics Yearbook,China Labor Statistics Yearbook and other macroeconomic data,this paper empirically analyzes the impact of information and communication technology on green economic efficiency and regional differences.The paper mainly includes the following five parts:The first part is the introduction.It mainly discusses the background and significance of the research,defines the important concepts of this paper,introduces the data and research methods used in the paper,defines the research ideas and contents,and finally expounds the research objectives and main innovations of the paper.The second part is the first and second chapters,which is the theoretical analysis part of this paper.The first chapter sorts out the relevant literature on information and communication technology and green economic efficiency,including the calculation of information and communication technology and green economic efficiency,the impact of information and communication technology on economic growth,the impact of information and communication technology on energy conservation and emission reduction,the influencing factors of green economic efficiency,and the the relationship between information and communication technology on green economic efficiency.The second chapter elaborates the relevant theories of information and communication technology and green economic efficiency,as well as the impact mechanism of information and communication technology on green economic efficiency,and constructs the theoretical analysis framework of this paper.The third part is the third chapter,which is the descriptive analysis part of this paper.The level of China’s information and communication technology and green economic efficiency are measured respectively at the first,and according to the calculation results,the development status,change trend and regional differences of China’s information and communication technology and green economic efficiency are described and analyzed.The fourth part is the fourth,fifth and sixth chapters,which is the econometric analysis part of this paper.The fourth chapter analyzes the impact of information and communication technology on green economic efficiency and regional differences empirically.The fifth chapter tests the mechanism of information and communication technology on green economic efficiency empirically,which corresponds to the theoretical mechanism in the second chapter.Considering the spatial autocorrelation of information and communication technology and green economic efficiency,the sixth chapter makes an empirical analysis on the spatial effect of information and communication technology on green economic efficiency,and decomposes the spatial effect.The fifth part is the seventh chapter,which is the summary of this paper.This chapter sorts out the main conclusions of this paper,puts forward targeted policy recommendations,the shortcomings of this paper,and the future research direction.According to theoretical and empirical analysis,this paper draws the following four main conclusions:(1)Descriptive analysis found that the level of information and communication technology in China is increasing,and the digital divide in the three major regions of east,central and west of China tends to narrow.The green economic efficiency is fluctuating and rising,and the green economic efficiency is expanding among the east,central and west of China.(2)The econometric analysis found that the full sample analysis showed that information and communication technology has a positive role in promoting green economic efficiency,after changing the indicators,calculation methods of information and communication technology and green economic efficiency,and adopting tool variable estimation,this conclusion still holds.Technological innovation and upgrading of industrial structure are important influencing mechanisms.Information and communication technology has improved green economic efficiency by promoting technological innovation and upgrading industrial structure.(3)The econometric analysis found that information and communication technology had the greatest contribution to the green economic efficiency in the eastern region,followed by the central region,and the western region is the minimal.The theory of network effects and the regional differences in the application capabilities of information and communication technologies provide explanations for this phenomenon,the level of information and communication technology and its application ability to information and communication technology in the eastern region are significantly higher than those in the central and west of China,information and communication technology has the greatest positive effect in the eastern region.(4)Econometric analysis found that from the perspective of spatial effect analysis,both information and communication technology and green economic efficiency have spatial autocorrelation,and spatial effect decomposition shows that information and communication technology can promote the local green economic efficiency while inhibit the green economic efficiency in neighboring regions.This shows that the improvement of information and communication technology level in a certain region attracts the agglomeration of labor,capital and technology and other factor resources in neighboring regions through siphoning effect and competition effect,which weakens the scale and agglomeration level of such factor resources in neighboring regions and further restricts the improvement of green economic efficiency in neighboring regions.The main innovations of this paper include:(1)In the existing empirical research on the influencing factors of green economic efficiency,the influencing factors mainly include industrial structure,technological innovation,environmental regulation,human capital,urbanization and foreign direct investment,etc.At the same time,the empirical research on information and communication technology mainly focuse on the impact of information and communication technology on economic growth and energy conservation and emission reduction.However,green economic efficiency comprehensively considers the factors of economic growth and energy conservation and emission reduction.At present,There is relatively little empirical research on the impact of information and communication technology on green economic efficiency.This paper makes an in-depth study on the relationship between the two.Under the background of digital economy,it further enriches the empirical research on the impact factors of green economic efficiency,and expands the empirical research on the social and economic effects of information and communication technology.In terms of research content,the paper further regards the analysis of regional differences as one of the research focuses.The paper not only analyzes the regional digital divide,the regional differences of green economic efficiency and their changing trends,but also further empirically studies the differences of the impact of information and communication technology on the green economic efficiency in different regions of China,and theoretically explains and analyzes the causes of such differences.(2)The existing research has not decomposed the spatial effect of information and communication technology on green economic efficiency,but only generally obtained the overall effect of information and communication technology on green economic efficiency.there is a lack of further analysis of the difference in the impact of information and communication technology on green economic efficiency in local and neighboring regions.In this paper,the common panel model and the spatial panel model are used for empirical analysis respectively,and in the spatial econometric analysis,the spatial effect of information and communication technology on green economic efficiency is decomposed,and the direct effect,indirect effect and total effect are obtained,so as to try to observe and compare the differences of the impact of information and communication technology on green economic efficiency in local and adjacent areas,and make explanations.(3)This paper constructs a theoretical analysis framework of the impact of information and communication technology on green economic efficiency,and conducts an empirical test on the mechanism of information and communication technology on green economic efficiency,through the combination of theoretical analysis and empirical tests,the paper confirms the feasibility and effectiveness of the impact mechanism,so as to expand and perfect the mechanism in the existing relevant research.(4)The existing research may have endogeneity problem,but it has not carried out endogeneity treatment,so there may be estimation errors.This paper attempts to further identify the causal relationship between information and communication technology and green economic efficiency,and adopts instrumental variable method to carry out endogeneity treatment,so as to reduce estimation errors as much as possible,and perfect the existing research. |
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