中心城市综合承载力对经济增长的空间溢出效应

The Spatial Spillover Effect of the Comprehensive Carrying Capacity of Central Cities on Economic Growth

高质量发展需要提高中心城市综合承载及资源优化配置能力,中心城市综合承载力提升对区域经济增长将产生重大影响。传统的经济增长模型无法考量其空间相关性,因此需要深入探析中心城市综合承载力对区域经济增长的空间效应。文章构建双向固定效应空间杜宾模型检验中心城市综合承载力对区域经济增长的空间溢出效应。研究表明:中心城市综合承载力具有空间外溢性与空间关联性,不论是中心城市综合承载力对经济增长,还是资本与劳动产出对经济增长均有空间溢出效应。同时,中心城市综合承载力作为资本与劳动集聚的空间载体,其通过资本与劳动的聚集作用与空间溢出效应对经济增长产生重要影响。此外,分空间区域检验中心城市的空间溢出效应。京津冀地区对其经济增长有较强的虹吸效应,长三角与珠三角地区对其经济增长有较强的辐射及空间扩散效应。

High-quality development needs to improve the comprehensive carrying capacity of central cities and the optimal allocation of resources.The improvement of comprehensive carrying capacity of central cities will have a signifi cant impact on regional economic growth.The traditional economic growth model cannot consider its spatial correlation,so it is necessary to deeply analyze the spatial eff ect of the comprehensive carrying capacity of the central city on the regional economic growth.This paper constructs a two-way fi xed-eff ects spatial Durbin model to test the spatial spillover eff ect of the central city’s comprehensive carrying capacity on regional economic growth.The research shows that the comprehensive carrying capacity of the central city has spatial spillover and spatial correlation,whether the comprehensive carrying capacity of the central city has a spatial spillover eff ect on economic growth,or the output of capital and labor has a spatial spillover eff ect on economic growth.At the same time,the comprehensive carrying capacity of central cities,as the spatial carrier of capital and labor agglomeration,has an important impact on economic growth through the agglomeration and spatial spillover eff ects of capital and labor.In addition,the spatial spillover eff ects of central cities are tested by spatial regions.The Beijing-Tianjin-Hebei region has a strong siphon eff ect on its economic growth,and the Yangtze River Delta and Pearl River Delta regions have a strong radiation and spatial diff usion eff ect on its economic growth.