全国统一大市场建设背景下省际贸易成本量化分析:基于地区间投入产出表

Quantitative analysis of China’s inter-provincial trade cost for the construction of the unified national market:Based on inter regional IO tables

采用量化空间分析方法,利用2012年和2017年中国地区间投入产出表,考察中国省际贸易成本特征。研究发现:省际贸易成本的来源可以分为地理壁垒、制度壁垒和结构壁垒;2012—2017年,中国省际贸易成本明显提高,与各地自给率的提高以及本地服务贸易比重提高紧密相关;地理距离与省际贸易成本显著相关,区间地形也会对省际贸易成本产生显著影响;省际贸易成本的非对称性体现在输入地和输出地的异质性方面,这一异质性包含各地不同的经济结构特征、制度壁垒特征等;部分省份较高的自给率体现了较低的参与国内分工的水平,从而制约国内经济一体化水平的提升。为促进全国统一大市场建设,需要针对3个维度的贸易壁垒,积极提高流通效率、打破地方分割、促进分工合作。

This paper uses the quantitative spatial model and China’s inter regional input-output tables in 2012 and 2017 to analyze the characteristics of China’s inter provincial trade cost.The analysis finds that the sources of inter provincial trade costs can be divided into geographical barriers,institutional barriers,and structural barriers.From 2012 to 2017,the inter provincial trade cost in China significantly increased,closely related to the increase in the provincial self-reliance rates,and the increase in the proportion of local service trade.Geographical distance is significantly related to the inter provincial trade cost,and the inter-regional terrain also has a significant impact on the trade cost.The asymmetry of inter provincial trade costs is reflected in the heterogeneity of the input and output provinces,which includes the characteristics of the regional economic structures,the institutional barriers,and so on.The higher self-reliance rate in some provinces reflects their lower level of participation in the domestic division,thus restricts the improvement of the domestic economy integration.In order to promote the construction of a unified national market,it is necessary to focus on the three dimensions trade barriers,actively improve the circulation efficiency,dissolve local separation,and promote spatial labor division and cooperation.