“互联网+”发展水平下的区域数字经济投入产出实证分析

Empirical analysis on input and output of regional digital economy under the development level of“internet+”

针对“互联网+”对数字经济的影响问题,本文以投入产出为视角构建数字经济指标体系,运用熵权TOPSIS法测算了我国30个省市2014-2020年的数据样本,通过面板协整检验和误差修正模型方法,从区域异质性视角探讨了“互联网+”发展水平下数字经济投入产出。研究表明,“互联网+”发展水平已经成为数字经济投入产出提高的长期驱动力,注重其结合有助于更好发挥“互联网+”的创新溢出效果;“互联网+”发展水平对数字经济产出投入的影响存在异质性,总体表现在东部地区的长期促进效应明显大于其他地区;“互联网+”发展水平对数字经济投入产出的长期均衡影响存在短期异质修正效应,且滞后效应同样存在显著的异质性特征。研究结论为各省数字经济投入产出水平的提高和企业创新能力的培养提供了参考。

To address the impact of"Internet Plus"on the digital economy,this paper constructs a digital economy indicator system from the perspective of input and output,measures the data samples of 30 provinces and cities in China from 2014 to 2020 by using entropy weight TOPSIS method,and explores regional heterogeneity through the panel cointegration test and error correction model method.digital economy input and output under the development level of"Internet+".The research shows that the development level of"Internet+"has become a long-term driving force for the improvement of input and output of the digital economy,and focusing on its combination will help to better play the innovation spillover effect of"Internet+".There is heterogeneity in the impact of"Internet+"development level on the output input of the digital economy,and the long-term promotion effect in the eastern region is significantly greater than that in other regions.There is a short-term heterogeneous correction effect on the long-term equilibrium impact of"Internet+"development level on the input and output of digital economy,and the lagging effect also has significant heterogeneity characteristics.The research conclusion provides a reference for the improvement of the input-output level of digital economy and the cultivation of enterprise innovation ability in various provinces.