关键词: 数字经济, 创新要素流动, 一体化发展, 空间杜宾模型, 门槛效应模型, 机制效应

Abstract:

Taking the digital economy and integrated development as the research theme, on the basis of sorting out the theory of the impact of digital economy on integrated development, using the relevant data of various provinces, and using the spatial Durbin, threshold effect and mechanism effect models, the impact of digital economy on the development of regional integration and its internal mechanism are empirically tested. The results show that: 1) the mechanism model shows that the digital economy promotes the development of regional integration, and this promotion can be realized through the mechanism of "innovation factor flow". 2) The spatial econometric model shows that the promotion effect of the digital economy in the eastern and central regions on the development of regional integration is significantly greater than the "siphon effect" of the central cities in the region. However, the central cities in the northeast and western regions have a "siphon effect" on the peripheral cities. 3) The threshold effect model shows that when the digital economy is taken as the threshold variable, the synergistic effect of the digital economy with the "flow of innovative material elements" and "the flow of innovative human elements" on the development of regional integration will be different. ①Under the flow of innovative capital factors, the digital economy has a double threshold effect, and with the improvement of the development level of the digital economy, the synergy between it and the flow of innovative capital factors will reduce the promotion effect on the development of regional integration. ②Under the flow of innovative human factors, the digital economy has a single threshold effect, and when it is at the level of low-intensity digital economy development, the synergy between it and the flow of innovative human factors will inhibit the development of regional integration. However, when the threshold is crossed and the digital economy is at a high level of development, the synergy between it and the flow of innovative human elements will promote the improvement of the development level of regional integration.

Key words: digital economy, flow of innovation elements, integrated development, spatial Durbin model, Threshold effect model, mechanism effects