中国城市经济高质量发展的地区差异及其影响因素分析

Regional Differences and Influencing Factors of High Quality Urban Economic Development in China

新时代,中国城市经济发展已由高速增长阶段转向高质量发展阶段。本文运用包含非合意产出的SBM模型测算了2003-2016年PM2.5约束下中国265个地级市的绿色全要素生产率,将其作为城市经济高质量发展的一个重要指标,随后借助Dagum基尼系数及其分解分析了中国城市经济高质量发展的地区差异,最后采用面板PCSE估计方法分析了中国城市经济高质量发展的影响因素。结果显示,中国绿色全要素生产率增长速度呈波动趋势,绿色技术效率总体呈下降趋势,绿色技术进步效率总体呈上升趋势;地区差异主要来源于超变密度,区域内贡献显著大于区域间;中国绿色全要素生产率支持"环境库兹尼茨曲线"假说,但不支持"污染天堂"假说。

In the new era,China’s urban economic development has changed from a high-speed growth stage to a highquality development stage.This paper uses the SBM model with undesirable output to measure the green total factor productivity of 265 prefecture level cities in China under the constraint of PM2.5 from 2003 to 2016 pm2.5,which is an important indicator of high-quality urban economic development,Finally,we use panel PCSE estimation method to analyze the influencing factors of high-quality development of urban economy in China.The results show that the growth rate of China’s green total factor productivity shows a fluctuating trend,the overall green technical efficiency shows a downward trend,and the overall efficiency of green technical progress shows an upward trend;The regional difference mainly comes from the hypervariable density,and the contribution within the region is significantly greater than that between regions;China’s green total factor productivity supports the hypothesis of“Environmental Kuznets Curve”,but does not support the hypothesis of“pollution paradise”.