如何解释中国各省区在投资环境上表现出来的差异 ?有三个主要原因是值得重视的 :当地经济利益群体的规模和特点的差异、中央政府政策中的地位以及改革前的区域特征和传统。前两个原因 ,可以从统计资料得到支持 ,而中央政策变动的影响却缺乏相应的证据。因此 ,为了更好地理解利益群体压力和地区特征的综合影响作用 ,要做进一步的统计检验和案例研究 How to explain the differences in the investment environment in various provinces and autonomous regions in China? Three main reasons are worthy of attention: the differences in the scale and characteristics of local economic interest groups, the status in the policies of the central government and the regional characteristics and traditions before the reform. The first two reasons can be supported by statistical data, but the impact of changes in the central government lacks corresponding evidence. Therefore, in order to better understand the combined impact of interest group pressure and regional characteristics, further statistical tests and case studies are needed