长江经济带发展战略对区域经济联系的影响研究--基于双重差分法的实证检验  

A Study on the Influence of the Development Strategy of the Yangtze River Economic Belt on the Regional Economic Relations:An Empirical Test Based on DID Modal

作　　者：陈磊 胡立君[1] 何芳 CHEN Lei;HU Lijun;HE Fang(School of Business Administration,ZhongNan University of Economics and Law,WuHan,430013,China)

机构地区：[1]中南财经政法大学工商管理学院,湖北武汉430073

出　　处：《经济经纬》2021年第2期23-32,共10页Economic Survey

基　　金：国家社会科学基金后期资助项目(17FJY014)

摘　　要：长江经济带发展战略是中国三大发展战略之一,战略的提出对加强区域经济联系、促进经济协调发展有着重要的影响。本文在梳理分析长江经济带发展战略对区域经济联系的作用机理的基础上,根据城市引力模型、中心职能强度等方法计算长江经济带各省(市)之间的经济联系强度,结合2008-2017年长江经济带以及周边省(市)的面板数据,利用双重差分模型考察长江经济带发展战略对区域经济联系强度的影响。结果表明:长江经济带发展战略能够显著提高区域整体的中心职能强度,加强区域经济联系。但这种促进作用在东、中、西部具有显著的差异性,长江经济带发展战略对经济联系强度的促进作用是西部大于中部,但在东部并不显著。政策含义方面,建议加大对长江经济带支持力度,优化资源配置方式,加强区域分工与合作,扩大区域中心城市特别是东部省市经济辐射的强度与范围,促进长江经济带的协调发展。As one of the three development strategies in China, the Yangtze River Economic Belt has an important impact on strengthening regional economic ties and promoting coordinated economic development. Based on the analysis of the mechanism of the development strategy of the Yangtze River Economic Belt on regional economic ties, this paper calculates the intensity of economic ties between provinces and cities in the Yangtze River Economic Belt by using the urban gravity model and the intensity of central functions. Then, by using the panel data of the Yangtze River Economic Belt and its surrounding provinces and cities from 2008 to 2017, the author studies the influence of the development strategy of the Yangtze River Economic Belt on the intensity of regional economic ties by means of double difference model. The results show that the development strategy of the Yangtze River Economic Belt can significantly improve the intensity of the central function of the region as a whole and strengthen regional economic ties. However, the promoting effect is significantly different in the eastern, the middle and the western regions. The promoting effect of the development strategy of the Yangtze River Economic Belt on the intensity of economic ties in the west is greater than that of the middle region, but it is not significant in the east. Therefore, the authors suggest that the government should increase its support to the Yangtze River economic Belt, optimize resource allocation, strengthen regional division and cooperation, expand the intensity and scope of economic radiation of regional central cities, especially the eastern provinces and cities, and promote the coordinated development of the Yangtze River Economic Belt.

关 键 词：长江经济带 经济联系 经济发展 双重差分法 

分 类 号：F061.5[经济管理—政治经济学]