数字经济与出口:基于异质性随机前沿模型的分析

Digital Economy and Export:Analysis Based on Heterogeneity Stochastic Frontier Model

文章从信息通信技术的应用水平、基础设施水平以及应用环境和经济影响维度构建了三种测度指标体系,衡量了中国不同地区的数字经济发展水平。文章通过比较分析发现,虽然整体呈现出上升趋势,但东部地区的数字经济发展明显优于中西部地区,存在区域发展不平衡的情况。在此基础上,文章运用异质性随机前沿模型,利用中国2008~2017年的省级出口面板数据,围绕数字经济发展对中国不同地区出口效率的影响进行了机制分析与实证检验。结果表明,数字经济的发展能够通过降低出口成本和优化地区资源配置提高出口效率,且这种影响也存在区域性差异。文章的研究为数字经济发展水平的测度提供了思路,也为进一步推进数字经济建设以及优化中国出口环境与质量提供了依据与启示。

This paper constructs three measurement index systems through the level of implementation in information and communication technology,infrastructure level,and dimension of environment and economic impact. The paper measures the development of digital economy in different regions of China by using these three index systems. Through comparative analysis,although the overall trend is on the rise,the development of digital economy in the eastern region is significantly better than the others,which shows that the development between regions is unbalance. On this basis,using the heterogeneous stochastic frontier model and the export panel data of regions from 2008 to 2017,this paper conducts mechanism analysis and empirical test on the impact of digital economic on the export efficiency. The results show that the development of digital economy can improve the export efficiency by reducing the export cost and optimizing the regional resource allocation,and this impact is also influenced by regional differences.This study provides ideas for the measurement of the development level of digital economy,as well as the basis and enlightenment for further promoting the construction of digital economy and optimizing the export environment and quality of China.