Research On The Efficiency Measurement And Influencing Factors Of China’s Marine Circular Economy

As a large marine country,China’s economic and social development is inseparable from the effective participation of the marine economy,and promoting the low-carbon circular development of the marine economy is the key to and important support for the low-carbon circular development of the national economy and society.To measure the efficiency of marine circular economy and even infer the relevant policy choices from it,it will not only help to directly promote the circular development of marine economy,but also help to promote the sustainable development of marine economy and national economy and society.Based on the connotation of circular economy and its efficiency,the data envelopment analysis(DEA)method can be used to measure the efficiency of marine circular economy in 11 coastal regions of China between 2010 and 2019.Considering that the DEA-based EBM model can only calculate the efficiency value from a static perspective and cannot reflect the time-series changes of the efficiency value,the GML index model can be used to calculate and decompose the total factor productivity of the marine circular economy in each region,so as to measure the efficiency of the marine circular economy in coastal areas in a time-series dynamic manner.On this basis,the kernel density estimation method can also characterize the distribution of marine circular economy efficiency during the study period.In addition,the Tobit regression model can be used to analyze the factors influencing the efficiency of China’s marine recycling economy based on the measured level of marine recycling economy efficiency.The main findings are as follows.First,the static measurement results of marine circular economy efficiency show that,from the regional perspective,the marine circular economy efficiency of China’s coastal regions varies significantly.Among them,Tianjin,Hebei,Shanghai and Hainan always have a marine circular economy efficiency of 1,which is in the leading position in coastal regions.Shandong,Guangdong,Fujian and Jiangsu have similar efficiency values in most years and are in the middle of the coastal region.The efficiency values of marine circular economy in Liaoning,Zhejiang and Guangxi are much smaller than the average efficiency values of each year,and are relatively lagging behind in the coastal region.On the whole,the average value of marine circular economy efficiency in each year is above 0.8,which indicates that China’s marine circular economy is in a good state of development.Secondly,the results of the dynamic measurement of marine circular economy efficiency show that,except for Hebei,all other coastal regions have improved their marine circular economy efficiency in varying degrees during the study period,and the growth rate of Hainan’s circular economy efficiency is particularly outstanding.As a whole,the development of China’s marine circular economy can be roughly divided into three stages: 2011 to 2013 belong to the high-speed development stage,with an average GML index of 1.066.2014 to 2015 belong to the slow development stage,with GML indices of 1.005 and 1.006,respectively.2016 to 2019 belong to the stable development stage,with an average GML index of 1.045.Finally,the regression analysis based on the available data shows that the regional economic base,the level of marine science and technology and the strength of environmental regulation have a significant role in promoting the efficiency of the marine circular economy,while the import and export trade has a suppressive effect on the efficiency of the marine circular economy,and the proportion of the output value of the marine tertiary industry has a limited impact on the efficiency of the marine circular economy.In order to improve the measurement of the efficiency of the marine recycling economy and effectively promote the development process of China’s marine recycling economy,it is advisable to establish and improve the statistical accounting system related to the efficiency of the marine recycling economy as soon as possible,formulate a complete development plan for the marine recycling economy,continuously enhance the level of scientific and technological development of the marine industry,and actively cultivate new marine industries.