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Smart city article details

Title Spatial Effect Of Digital Economy On Particulate Matter 2.5 In The Process Of Smart Cities: Evidence From Prefecture-Level Cities In China
ID_Doc 52444
Authors Tan J.; Chen L.
Year 2022
Published International Journal of Environmental Research and Public Health, 19, 21
DOI http://dx.doi.org/10.3390/ijerph192114456
Abstract During the COVID-19 pandemic, the digital economy has developed rapidly. The airborne nature of COVID-19 viruses has attracted worldwide attention. Therefore, it is of great significance to analyze the impact of the digital economy on particulate matter 2.5 (PM2.5) emissions. The research sample of this paper include 283 prefecture-level cities in China from 2011 to 2019 in China. Spatial Durbin model was adopted to explore the spatial spillover effect of digital economy on PM2.5 emissions. In addition, considering the impact of smart city pilot (SCP) policy, a spatial difference-in-differences (SDID) model was used to analyze policy effects. The estimation results indicated that (1) the development of the digital economy significantly reduces PM2.5 emissions. (2) The spatial spillover effect of the digital economy significantly reduces PM2.5 emissions in neighboring cities. (3) Smart city construction increases PM2.5 emissions in neighboring cities. (4) The reduction effect of the digital economy on PM2.5 is more pronounced in the sample of eastern cities and urban agglomerations. © 2022 by the authors.
Author Keywords digital economy; particulate matter 2.5 emissions; smart city pilot policy; spatial difference-in-differences model; spatial Durbin model


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