Abstract:

Based on the cross-provincial panel data, this paper constructs a dynamic spatial panel Dobbin model, makes an empirical analysis on the spatial spillover effect of telephone and Internet communication infrastructure on economic growth, deeply estimates the direct effect and spatial spillover effect of communication infrastructure on economic growth by using the spatial partial differential method, and analyzes the regional heterogeneity. The empirical results show that telephone penetration and Internet penetration have no significant positive direct effect. The former has no significant positive spatial spillover effect, while the latter has significant negative spatial spillover effect. The interaction terms of the two show significant positive direct effect and spatial spillover effect in the long-term and short-term, and the long-term performance is better than that in the short-term. The total effect of the two periods mainly comes from the spatial spillover effect. In addition, the interaction term of the eastern region has a significant negative spatial spillover effect, while the interaction term of the central and western regions has a positive spatial spillover effect. Therefore, it is of necessity to establish a dynamic coupling and coordination mechanism between telephone and Internet communication infrastructure, improve regional linkage and integration, and give full play to its promoting effect on regional economic growth.

Key words: communication infrastructure, economic growth, Spatial Partial Differential Method, telephone penetration, internet penetration