数字经济实现了绿色创新“增量提质”吗——基于异质环境关注视角

Has Digital Economy Realized the“Increase of Quantity and Improvement of Quality”of Green Innovation——From the Perspective of Heterogeneous Environmental Concern

基于2011—2020年中国城市和微观企业数据,在重构数字经济指标体系及识别绿色创新水平的基础上,多维度检验了数字经济发展对绿色创新质和量的影响及其内在机制。研究发现:数字经济显著促进了绿色创新“增量提质”,激发政府和公众环境关注是其重要作用机制,且政府和公众环境关注是实现数字经济赋能绿色创新的必要条件;数字经济发展对周围城市的绿色创新具有一定的空间溢出效应;数字经济对绿色创新的“增量提质”效应在非资源型城市、知识产权保护力度强的城市、高碳排放城市、国有企业、规模较大的企业更加明显。

Based on the data of Chinese cities and the enterprises at a micro level from 2011 to 2020,the paper firstly reconstructed the indicator system of digital economy and identified the level of green innovation,and then multidimensionally tested the impact of digital economy development on the quality and quantity of green innovation,as well as its internal mechanism.The study found that digital economy has significantly promoted the process of“increasing quantity and improving quality”of green innovation,and its important action mechanism was to stimulate the environmental concern of the government and the public.The environmental concern of the government and the public has become a requisite for digital economy empowering green innovation.Meanwhile,there was a certain spatial spillover effect of the development of digital economy on the green innovation of neighbouring cities.Besides,the effect of“increasing quantity and improving quality”of digital economy on green innovation was more significant in non-resource-based cities,the cities with stronger protection against intellectual property,the cities with higher carbon emissions,state-owned enterprises and large-scale enterprises.