Calculation Of China's Green Economic Efficiency And Their Determinants

Since the reform and opening up policy,China's national economy has been achieving long and rapid growth.The economic development is not only depends on the increase of factors input,but also relies on the improvement of economic efficiency.Scholars measure China's total factor productivity through kinds of ways,trying to explain the improvement of China's economic efficiency.The calculation methods have been from parametric to nonparametric.The subjects researched have became deeper,from the macro level to the medium and micro level.However,traditional economic efficiency measurement ignores the presence of the undesirable outputs and exists mistakes,which includes environmental pollution and ecological costs.Thus,the undesirable outputs are taken into economic efficiency measurement models for better accurate calculation in related research and the efficiency is called as green economic efficiency.This paper selects SBM model to compute China's green economic efficiency from 1998 to 2013 and elaborate related results.Research on the influence factors of China's green economic efficiency is relatively poverty and scarcity.This study focus and analysis the effect of the economic development scale,industrial structure,urbanization,foreign direct investment,spending on education,environmental regulation on the nation,the eastern,the middle and the western of China.The effect is researched by empirical study through panel data.And the above factors threshold effect on the green economic efficiency is investigated at last.The results show that China's green economic efficiency exists relatively large differences between regions.Green economic efficiency of the majority of provinces is increases steadily.The trend of stable ascent exists in the nation and three regions.The efficiency in the eastern region is highest.The efficiency of central region is obviously lower than western area from 1998 to 2003,but exceeds the western of China after that,while that of the west fluctuates and rises in the studied period.During the 11 th Five-Year Plan and the 12 th Five-Year Plan,China's average efficiency is significantly lower than that of eastern area,but higher than that of central region and the west,and that of the west grows highest.The average efficiency of the middle area and the west is relatively low.We can find that a trend of ? convergence of China's green economic efficiency during 1998-2003 through the result of convergence test while it fluctuates in the later.That of the east becomes divergent during 2004-2010 and the green economic efficiency of central region has a trend of ? convergence from 2004 to 2007 and from 2010 to 2012.Provincial polarization of the west is improved during 1998-2002 and 2004-2007.No evidence if found for the absolute ? convergence in China as a whole and in the three different regions.We also examine the above determinants of their green economic efficiency by using the panel Tobit model.And there is an inverse U-shaped relationship between green economic efficiency and real per capita GDP in the nation,the middle and the west.Other factors have different relationship with green economic efficiency except urbanization.And those above factors threshold effect on the green economic efficiency in China as a whole is studied by using panel threshold model at last.The results show that the threshold effect is among the above determinants and green economic efficiency except the economic development scale.The higher proportion of secondary industry in economy is not conductive to green economic efficiency.The higher level of urbanization can effectively promote the efficiency.The foreign direct investment threshold effect on green economic efficiency is negative and weak at the low level,but becomes positive at last.With the low of spending on education,it is not conductive to the efficiency.And its effect on the efficiency is not obvious when it is to a certain height.Moreover the higher intensity of environmental regulation is not conductive to the green economic efficiency.Lastly,the paper provides some suggestions for improving China's green economic efficiency.