长江经济带省际贸易网络结构时空特征及其影响因素研究

发布时间：2018-01-08 09:07

本文关键词：长江经济带省际贸易网络结构时空特征及其影响因素研究　出处：《上海经济研究》2017年09期 　论文类型：期刊论文

【摘要】：研究长江经济带省际贸易网络结构,有利于揭示其内部经济联系规律,推进区域经济协同发展。基于2000-2015年省际铁路货运交流数据,采用SNA方法刻画长江经济带省际贸易网络时空特征,借助贸易网络引力模型和QAP回归方法实证研究省际贸易网络演变的影响因素。研究表明:(1)2000-2015年长江经济带省际贸易网络结构发生了显著变化,逐步演化成"苏-浙-皖-赣"和"川-渝-滇-贵"两大贸易联系核心圈;(2)网络密度呈现先升后降的弱连结联系态势,圈层特征明显,子圈间联系较弱;(3)中心性水平呈现"下冷中上热"态势,各贸易主体影响力日趋均衡,但点出入度非均衡趋势明显;(4)城镇化、产业结构、基础设施、地方保护是长江经济带省际贸易网络演变的重要因子。建议:着力构建区域联动的新型城镇化格局、适时产业结构调整、加快基础设施互联互通、建立跨区域联合协调机制,以深化地区间经济联系。
[Abstract]:The study of the inter-provincial trade network structure of the Yangtze economic belt is conducive to revealing the internal economic relations and promoting the coordinated development of regional economy. Based on the data of interprovincial railway freight transport exchange from 2000 to 2015. SNA method is used to describe the temporal and spatial characteristics of inter-provincial trade network in the Yangtze River economic belt. With the help of gravity model of trade network and QAP regression method, this paper empirically studies the influencing factors of the evolution of inter-provincial trade network. From 2000 to 2015, the inter-provincial trade network structure of the Yangtze River economic belt changed significantly. It has gradually evolved into two core circles of trade links: "Jiangsu, Zhejiang, Anhui and Jiangxi" and "Sichuan, Chongqing, Yunnan and Guizhou". (2) the density of the network shows a weak connection situation of first rising and then descending, the characteristic of the circle layer is obvious, and the relation between the subcircles is weak; (3) the central level presents the situation of "lower cold, medium upper heat", the influence of each trade body is more and more balanced, but the uneven trend of point out degree is obvious; 4) urbanization, industrial structure, infrastructure and local protection are important factors in the evolution of inter-provincial trade network in the Yangtze economic belt. Speed up infrastructure connectivity and establish cross-regional joint coordination mechanisms to deepen inter-regional economic ties.
【作者单位】：江西财经大学江西经济发展与改革研究院;
【基金】：国家自科基金青年项目(编号:71703061)“省际交界区空间结构形成演进与优化整合研究”资助
【分类号】：F727
【正文快照】： 一、研究现状长江经济带承东启西,是我国区域经济“T”型空间格局中极其重要的一级发展轴,以占全国20%的国土面积创造了超过40%的GDP,担负着扩大内需、引领全国深度参与国际分工的重要战略任务,并与“一带一路”、京津冀协同发展一起成为我国“十三五”乃至更长时期的三大引领

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