公共资本和私人资本的生产效率及其区域差异——基于分位数回归模型的研究

The Productive Efficiency and Regional Disparities of Public Capital and Private Capital

本文基于中国各省区市1994～2005年的样本数据,利用分位数回归估计了各区域和各省区市的公共资本和私人资本在各分位点的产出弹性,主要结论是:私人资本的产出弹性远远大于公共资本,私人资本的产出弹性系数均为正,且基本上显著;而对于公共资本,除少数省区市外,东中部各省区市的产出弹性系数为正,而西部省区市的弹性系数则基本上为负,且大多数并不显著。各省区市的公共资本和私人资本不仅在产出弹性大小上存在较大差异,而且在条件分布的不同分位点,其弹性的变化规律也不尽相同。

This paper estimates the output elasticity of each quantile point of each province and area＇s public and private capital in China by using quantile regression, based on the data from 1994 to 2005. The conclusions are as follows. The output elasticity of private capital is larger than that of public capital, and the coefficients of the output elasticity of private capital are positive and significant. The output elasticity of public capital in most of provinces in eastern and central China are positive while that in western China are basically negative. The output elasticity among public and private capitals in each province is different~ their change rules are not the same too in different quantile point of conditional distribution.