摘要
《2009年世界发展报告》吸收了马歇尔外部性与新经济地理学的理论成果,创造性地提出一个新的经济地理分析框架——3D分析框架,即密度、距离、分割。为了在中国城市层面上验证3D分析框架对城市劳动生产率差异的解释力,本文利用中国2004-2009年城市面板数据,选取经济密度、与省会城市距离、与沿海城市距离、国内市场分割度四个指标,控制住人均资本量和人力资本等变量,建立随机效应面板数据模型。在模型估计过程中,我们考虑到密度变量潜在的内生性和变量间的多重共线性,通过IV和GMM估计方法消除内生性问题,从而得到比较可靠的回归结果。本文发现经济密度对我国城市劳动生产率差异的影响显著为正,与沿海距离和与省会距离的影响显著为负,基本符合预期,但是国内市场分割度的影响不显著。进一步的研究发现,影响东、中、西部劳动生产率差异的经济地理特征不尽相同。
This paper makes an empirical analysis with The 2009 World Development Report＇s 3D framework which is defined by Density, Distance, Division, measured by economic density, the distance from the coast, the distance from provincial capital and domestic market integration, for the explanation of spatial labor productivity disparities in a panel of 2004 - 2009 Chinese cities. Control the variables of capital stock per capita and human capital, we build the random effect panel data models, and use IV and GMM estimation techniques, thus offering an alternative methodological treat- ment of the inherent endogeneity problem. The result presents evidence of a significant positive role for economic density in determining spatial labor productivity disparities, while a negative role for the distance from the coast and provincial capital. The evidence of a role for domestic market division is more complicated. We also find the difference of 3D＇s effects on labor productivity among east, central and west.
出处
《中国软科学》
CSSCI
北大核心
2012年第11期77-86,共10页
China Soft Science
基金
国土资源部公益性行业科研专项经费项目"城市群经济空间与国土优化利用耦合技术研究与应用"(Z201011018-5)
关键词
密度
距离
分割
城市劳动生产率
density
distance
division
spatial labor productivity disparities
