中国服务业分行业绿色生产率变迁与收敛性研究

Study on the Changes and Convergence of Green Productivity in China's Service Sub-industry

为了考察中国服务业的绿色全要素生产率(TFP)的变动及其趋同性,运用基于SBM方向性距离函数的全域Malmquist-Luenberger生产率指数对2004—2014年中国服务业细分行业的绿色TFP进行估算,并对其收敛性进行实证研究。测度结果表明,中国服务业总体的绿色TFP呈现上升趋势,技术进步是其增长的源泉。生活性服务业与新兴服务业具有较高的绿色TFP,生产性服务业与传统服务业的绿色TFP相对较低。收敛分析发现,中国服务业绿色TFP存在β收敛但不存在σ收敛,且不同分组行业的收敛特征不尽相同。另外,行业规模的扩大以及能源结构的优化显著提高了中国服务业绿色TFP,而行业结构的变动显著抑制了服务业绿色TFP增长,研发投入对服务业绿色TFP不存在显著作用。

To study the changes and convergence of green total factor productivity（TFP）in China＇s service sub-industry,this paper measures the green productivities in China＇s service sectors from 2004 to 2014 by using Global Malmquist-Luenberger index based on SBM directional distance function and then has an empirical analysis on its convergence.This paper finds that services green TFP in overall level and sub-industry level are all rising and technological progress is the source of the change.Consumer services and newly-emerged service industry have relatively high green TFP,and producer services and traditional service industry have relatively low green TFP.There exists β convergence but not σ convergence in the carbon productivities of China＇s service industry,and there is heterogeneity in the convergence characteristics of industries classified based on different criteria.There exists positive scale-effect and environment-effect,and negative structure-effect in the green productivities of China＇s service sub-industry.