数字经济提升了中国城市的出口产品质量吗

Has the Digital Economy Improved the Quality of Exports from Chinese Cities?——Empirical Evidence from 222 Prefecture-level Cities in China

在数字经济快速发展和贸易强国战略背景下,研究数字经济与出口产品质量的关系显得尤为重要。本文考察了数字经济对出口产品质量的影响,并采用莫兰指数和空间杜宾模型检验了该影响的空间效应。研究发现:(1)数字经济显著提升了出口产品质量,且城市群城市、大城市和沿海城市的提升作用大于非城市群城市、中小城市和内陆城市;(2)空间相关性分析结果显示,数字经济与出口产品质量均存在正的城市间自相关性;(3)进一步的空间效应分析表明,二者之间存在显著的正向空间溢出。本文运用空间效应分析,一定程度上深化了数字经济与贸易领域的相关研究。

In the context of the rapid development of digital economy and the strategy of building a trade power,it is particularly important to study the relationship between digital economy and export product quality.This paper examines the impact of digital economy on export product quality,and uses Moran index and spatial Dubin model to test the spatial effect of this impact.The results show that:1.Digital economy significantly improves the quality of export products,and the improvement effect of urban agglomeration,big cities and coastal cities is greater than that of non-urban agglomeration,medium and small cities and inland cities;2.Spatial correlation analysis shows that digital economy and export product quality have positive spatial autocorrelation;3.Further spatial effect analysis shows that digital economy has a significant positive spatial spillover effect on export product quality.This paper uses spatial econometric method to study the relationship between digital economy and export product quality,which to some extent deepens the research on digital economy and trade.