国内市场分割的测度及其影响因素分析

An Analysis of the Segmentation of Domestic Market and Its Influencing Factors

准确辨识国内市场分割的程度及其影响因素是打破地区贸易壁垒、形成全国统一大市场和构建现代化市场体系的关键。本文利用2000-2015年中国30个省市自治区的面板数据,实证检验发现:(1)2000年以来,我国市场分割指数总体呈现下降的趋势,个别年份小幅上升;从区域层面上看,东、中、西部地区国内市场分割指数的走势与全国基本一致,中部地区国内市场分割程度最低;从省际层面来看,各省市自治区国内市场分割指数的变动较为平稳,且总体呈现逐年下降的趋势。(2)自然层面因素并不是造成我国市场分割的重要原因,制度性的因素才是形成我国市场分割的主要原因;基础设施建设和中央转移支付是打破国内市场分割的有效手段;而财政分权、国际市场开放、经济国有化、地方政府竞争、政府干预等促使国内市场分割程度加剧。(3)分地区样本的检验结果表明,中央转移支付和国际市场开放参数估计系数的显著性存在空间异质性;其他影响因素的显著性未发生明显变化。

Accurate identification of the causes for the fragmentation of the domestic market is the key factor for breaking regional trade barriers,forming a unified national market and constructing modern market system. Using the panel data of 30 provinces,cities and autonomous regions in China from 2000 to 2015,this study has revealed the following findings. Firstly,since 2000,China’s market segmentation index has generally declined. Moreover,from the regional perspective,the domestic market segmentation index of the eastern,central and western regions is basically consistent with the national market,and the domestic market in the central region has the lowest degree of segmentation. Secondly,Institutional factors rather than natural factors are the main cause for market segmentation.Thirdly,the results of the sub-regional sample test show that there is spatial heterogeneity in the significance of the central transfer payment and international market openness parameter estimation coefficients,and,although the significance of other influencing factors has not changed obviously,there are regional differences in the magnitude of the force.