中国绿色扶贫性增长测度及分析——兼论可持续性减贫

Measurement and Assessment of China’s Green Growth in Poverty Alleviation: On Sustainable Poverty Reduction

基于OECD绿色增长战略框架,重塑测度中国绿色扶贫性增长指标体系;利用包含多种非期望产出的非径向ZSG-DEA 模型和Malmquist指数及其指数分解对1998—2016年中国绿色扶贫性增长进行科学合理的测度,并运用σ收敛、绝对β收敛和条件β收敛对其进行趋势分析。结果发现:中国绿色扶贫性增长水平总体呈现逐年波动下降的趋势,其中两个重要源泉是纯技术进步和效率改进,前者呈现上升趋势,后者呈现下降趋势,且前者的上升幅度低于后者的下降幅度;各地区绿色扶贫性增长水平、纯技术进步以及效率改进存在明显差异,东部地区绿色扶贫性增长水平和效率改进水平最高,中部地区纯技术效率水平最高,而西部地区三个方面指标都最低。进一步分析显示,中国绿色扶贫性增长指数具有收敛性,即存在阶段式σ收敛以及显著的绝对β收敛和条件β收敛。

Based on the framework of OECD green growth strategy,the index system of measuring China's green poverty alleviation growth is reconstructed.The non-radial ZSG-DEA model and Malmquist index and its exponential decomposition are used to measure the growth of green poverty alleviation in China during 1998-2016 in a scientific and reasonable way,in which σ convergence,absolute β convergence and conditional β convergence are used to its trend analysis.The results show that the overall growth level of green poverty alleviation in China shows a fluctuating downward trend year by year for which the two important sources are pure technical progress and efficiency improvement.The former shows an upward trend while the latter shows a downward trend.There are obvious differences in the growth level,pure technical progress and efficiency improvement of green poverty alleviation among different regions. The eastern region has the highest level of green poverty alleviation growth and efficiency improvement,the central region has the highest level of pure technical efficiency,and the western region has the lowest index in three aspects.Further analysis shows that the growth index of green poverty alleviation in China has convergence,that is,there is stage-type σ convergence and significant absolute β convergence and conditional β convergence.