摘要
在构建新型基础设施建设评价指标体系的基础上,运用三阶段DEA模型测度2008—2021年我国的新型基础设施建设效率,并基于城市规模差异,进一步讨论新型基础设施建设效率对共同富裕的影响。结果显示:首先,新型基础设施建设效率在整体上呈现出先下降后上升的趋势,并表现出非均衡性。超大城市和特大城市的新型基础设施建设效率呈现出快速提升的趋势,该效率在大城市、中等城市和小城市则呈现出不同程度的下降趋势。其次,组内差距是非均衡性的主要来源,超大城市组内差距贡献率缓慢下降,大城市、中等城市和小城市组内差距呈现出快速扩张的趋势。此外,新型基础设施建设效率的提升有利于共同富裕的实现,但在不同城市规模条件下其作用效应表现不同,其对超大城市和特大城市表现为总体富裕效应,对大城市和中等城市表现为共享富裕效应,对小城市则无影响。最后,测算得到新型基础设施建设效率共同富裕效应的最佳城市人口规模为167.10万—375.65万人,并在此基础上提出针对性政策建议,以期为推动新型基础设施在城市建设体系中的合理布局提供有益参考。
This paper first constructs a comprehensive evaluation system for the construction of new infrastructure,and then uses a three-stage DEA model to measure the efficiency of new infrastructure construction from 2008 to 2021.In addition,based on the differences in urban scale,we discuss the impact of the efficiency of new infrastructure construction on common pros-perity.We find that firstly,the overall efficiency of new infrainfrastructure construction shows a trend of first decreasing and then increasing,showing an imbalance,that is,mega and super-large cities show a rapid upward trend,while large cities,medium-sized cities,and small cities show varying degrees of downward trend.Secondly,intra-group disparities are the main source of non-equilibrium,with the contribution rate of intra-group disparities in mega cities slowly decreasing,while large,medium-sized,and small cities are showing a rapid expansion trend.In addition,the efficiency of new infrastructure construction is conducive to achieving common prosperity,but its performance in urban scale varies.It only shows an overall prosperity effect for mega and super-large cities,a shared prosperity effect for large and medium-sized cities,and has no impact on small cities.Finally,the optimal urban population size for the common prosperity effect of the efficiency of new infrastructure construction is 1.671-3.757 million.This study provides references for promoting the rational layout of new infrastructure in urban construction systems.
作者
郭爱君
谭君印
GUO Ai-jun;TAN Jun-yin
出处
《城市问题》
北大核心
2024年第4期4-16,共13页
Urban Problems
基金
国家社会科学基金西部项目(20XJL008)——“黄河流域高质量发展下兰州—西宁城市群产业空间结构优化研究”。
关键词
新型基础设施建设效率
城市规模
共同富裕
三阶段DEA
efficiency of new infrastructure construc-tion
urban size
common prosperity
three-stage DEA
