互联网发展与城市出口技术复杂度提升

Internet Development and the Improvement on the Urban Export Sophistication

本文基于2007~2017年中国281个城市的数据,测算城市出口技术复杂度指数并分析我国城市出口技术复杂度的空间分异性和集聚性,进而运用链式多重中介效应模型(CMEM),探究互联网发展对城市出口技术复杂度的影响及其作用机制。研究结果发现:在“人力资本效应”、“技术创新效应”及两者的共同作用下,互联网发展对城市出口技术复杂度产生显著的正向影响,并且“人力资本效应”发挥的中介作用最大。异质性检验表明,相较中部和西部地区,我国东部地区的互联网影响效应更大。本文的研究为我国在“十四五”时期推进智慧城市建设以及外贸高质量发展提供了理论支持。

Based on the data of 281 cities in China from 2007 to 2017,this paper calculates the urban export sophistication index,then analyzes the spatial differentiation and agglomeration of urban export sophistication.It uses chain multiple mediation effect model(CMEM)to explore the influence mechanism of Internet development on urban export sophistication.The results show that Internet development has a significant positive impact on urban export sophistication through human capital effect,technological innovation effect and the co-effect of both,and the mediation effect of human capital is the largest.Heterogeneity test shows that,the influence of the urban Internet development in eastern China is greater compared with the central and western regions.This research provides theoretical support for China to promote the construction of smart cities and improve the quality of foreign trade development during the 14th Five-Year Plan period.