Co-Integration Analysis of Digital Economy-Technological Innovation-Ecological Environment in the Yellow River Basin
In order to explore the co-integration relationship among the digital economy,technological innovation and ecological environment in the Yellow River Basin,based on the panel data of provinces(regions)in the Yellow River Basin from 2011 to 2020,an evaluation index system for ecological environment quality,digital economy development level and technological innovation level was built,and the temporal and spatial evolution characteristics and regional differences were studied by using Theil index.ARDL model and Granger causality test were used to analyze the long-term co-integration relationship,short-term dynamic influence and causality between the three.The results show that a)the ecological environment quality,digital economy development level and technological innovation level of the Yellow River Basin are on the rise in 2011-2020 as a whole,and there are large spatial differences between regions,with the ecological environment quality showing a pattern of"low-low agglomeration and high-high convergence",and the digital economy development level and technological innovation level showing a pattern of high in the southeast and low in the northwest.b)There is a long-term stable co-integration relationship among ecological environment,digital economy and technological innovation.c)The impact of digital economy and technological innovation on the ecological environment has a significant positive effect,in which the effect of digital economy on the ecological environment is significantly larger than that of technological innovation,the short-term effect of digital economy on the ecological environment is larger than that of long-term effect,while the short-term effect of technological innovation on the ecological environment is correspondingly smaller than that of the long-term effect.d)The impact of technological innovation on the digital economy all has a highly significant positive effect,in which the long-term effect is greater than the short-term effect.Suggestions on industrial structure adjustment,pollution prevention and control,and top-level de-sign for coordinated development are put forward.
ecological environmentdigital economytechnological innovationco-integrationYellow River Basin
万方数据
维普
