数字经济对制造业企业创新能力的影响研究

Research on the Impact of Digital Economy on the Innovation Capability of Manufacturing Enterprises

摘要: 近年来，数字经济的兴起为实体经济发展带来了新动力。本文利用熵值法对2015~2022年地级数字经济发展水平进行测度，结合中国A股制造业393家上市公司数据，实证检验了数字经济对制造业企业创新能力的影响机制。研究结果证实：第一，数字经济对制造业企业创新能力有显著的促进作用；第二，从影响机制上来看，供应商集中度在数字经济影响制造业企业创新能力的过程中存在部分中介作用；第三，数字经济对制造业企业创新能力的影响在地区层面存在一定的异质性，相对于西部地区，数字经济对制造业企业创新能力的提升效应在东部地区与中部地区更加显著。

Abstract: In recent years, the rise of digital economy has brought new impetus to the development of real economy. In this paper, we use entropy method to measure the development level of prefecture-level digital economy from 2015 to 2022, this paper empirically tests the impact mechanism of digital economy on innovation capability of manufacturing enterprises. The results show that, firstly, the digital economy has a significant promoting effect on the innovation capability of manufacturing enterprises; secondly, supplier concentration plays a part of mediating role in the process of the impact of digital economy on the innovation capability of manufacturing enterprises; thirdly, the impact of the digital economy on the innovation capability of manufacturing enterprises is heterogeneous at the regional level, compared with the western regions, the effect of digital economy on the innovation ability of manufacturing enterprises is more significant in the eastern and central regions.