地理距离、集聚外部性与劳动生产率——基于城市数据的空间面板计量分析

Geographical Distance、Agglomeration Externalities and Labor Productivity: A Spatial Panel-Data Study

本文采用2003-2009年中国城市面板数据实证检验了地理距离、集聚外部性与城市劳动生产率的关系。结果表明:在控制了人力资本、产业结构、交通和通讯基础设施等影响因素后,一个城市的劳均资本存量、经济密度和相对专业化水平对劳动生产率有着显著的正向影响。同时,邻近城市的经济绩效存在明显的空间依赖性,城市间的溢出效应在170公里范围内表现得最为显著,此后明显减弱,至280公里以外几乎消失。

Based on urban panel datas from 2003 to 2009, we explore the relationship between geographic distance, agglomeration economics and urban labor productivity. The findings provide a remarkable confLrmation of capital stock per worker, economic density, specialization of economics contributing to the labor productivity differences among cities. The results also suggest that spatial correlation and the spillovers between cities are the strongest within 170 km and exist only for a distance up to 280kin, quite limited in geographic scope.