高质量发展背景下黄河流域中下游绿色生产率时空分异研究

高质量发展背景下,以绿色全要素生产率（GTFP）视角考察黄河流域中下游各地市2003—2018年间的经济发展质量。首先,对GTFP进行测度并与传统TFP比较分析;其次,对GTFP增长率的内在动力进行解构;最后,采用变异系数和回归分析检验GTFP的收敛趋势,并验证其增长率的影响因素。结果表明：①GTFP较传统TFP表现出“中部塌陷”为特征的非均衡分布;②2003—2013年间,技术效率的提升是GTFP增长的主要推动力,2013年后技术前沿水平转变为主要动力;③在“追赶”效应下,各地市GTFP的差异呈缓慢缩小趋势;④该区域GTFP的提高受产业结构、财政科技投入等因素的显著影响。

SPATIAL-TEMPORAL DIFFERENTIATION OF GREEN PRODUCTIVITY IN THE MIDDLE AND LOWER REACHES OF THE YELLOW RIVER BASIN UNDER THE BACKGROUND OF HIGH-QUALITY DEVELOPMENT

From the perspective of green total factor productivity (GTFP), this paper investigates the quality of economic development in the middle and lower reaches of the Yellow River basin from 2003 to 2018. We first measure the GTFP at the prefecture level and compare it with traditional TFP. Second, we deconstruct the internal dynamics of the GTFP growth rate. Third, we testify the convergence trend of GTFP as well as verify the impact factors on the GTFP growth rate. The results show that:1) GTFP in the middle and lower reaches of the Yellow River Basin shows a non-equilibrium distribution characterized by "central collapse", and GTFP can better describe the spatial differences of economic quality than traditional TFP. 2) Before the 2008 economic crisis, the cities with higher GTFP are mainly located in Shaanxi and Shandong cities along the Yellow River. During this period, the overall technical efficiency of the region has declined, but it is still the main driving force for the rise of GTFP in all cities. 3) The GTFP has weak σ convergence in the middle and lower reaches of the Yellow River basin. In the case of large regional differences in GTFP, the narrowing trend of differences among cities is slow, and the imbalance of regional development is difficult to resolve in a short time. 4) The GTFP has β convergence in GTFP in the middle and lower reaches of the Yellow River Basin. The growth rate of low-level areas of GTFP is faster, which has a "catch-up" effect.