Spatiotemporal Evolutionary Characteristics and Economic Effects of Beijing-Tianjin-Hebei Digital Manufacturing Industry
Based on the data of industrial and commercial firm registration in Beijing-Tianjin-Hebei from 2000 to 2021,this paper explores the spatial distribution characteristics and evolution trend of digital manufacturing industry using the inverse distance weighted interpolation method,and empirically tests the impact and spillover effect of digital manufacturing development on county economies by the means of dynamic panel model,spatial econometric model and generalized method of moments(GMM).It's found that:1)The scale of digital manufacturing gradually tended to be balanced in Beijing-Tianjin-Hebei,the number of registered digital manufacturing firms in Tianjin and Hebei gradually exceeded that in Beijing,especially in Cangzhou,Xingtai and Baoding where the digital manufacturing had begun to take shape,the proportion of digital manufacturing in Tianjin and Hebei was still far lower than that in Beijing,but there were still serious imbalances between three regions.2)The empirical results show that the development of digital manufacturing can not only promote the local economic growth,but also has a positive spatial spillover effect on the surrounding counties'economic growth.However,this positive spillover effect is only limited to the scale proportion index.In the short term,the entry rate of digital manufacturing firms in the current year has a significant inhibitory effect on the economic development of the surrounding counties.In the long term,the inhibitory effect of the entry rate disappears,the share of digital manufacturing generates a positive spillover to the economic growth of the surrounding counties with the accumulation of scale.
digital product manufacturingeconomic growth of districts and countiesspatial spillover effectBeijing-Tianjin-Hebei
万方数据
维普
