The Club Convergence and Its Dynamic Evolution of Urban Pollutant Emissions in China
A theoretical analysis and empirical examination of the convergence of pollution emissions in China is conducted under the modified spatial green Solow model framework.The following key conclusions are primar-ily drawn:Firstly,theoretical analysis suggests that when the growth rate of emission reduction technologies exceeds the overall output growth rate,the economy will surpass the turning point of the environmental Kuznets curve,providing theoretical support for the existence of pollution emission convergence.Subsequently,the results of the spatial panel model estimation indicate that urban pollution emissions in China currently exhibit convergent characteristics,with"club convergence"being the first to materialize.Finally,the results of the grouped estimation reveal that there are three categories of urban clusters in China,namely,low-pollution,moderate-pollution,and high-pollution.Among them,the low-pollution city cluster has entered a virtuous development model for pollution control.The moderate-pollution club has experienced pollution transfer phenomena,reflecting a certain degree of"pollution haven"effect.In contrast,the high-pollution club exhibits a typical pollution-positive feedback loop mechanism,indicating the continued risk of worsening pollution.
urban pollutant emissionclub convergencespatial green solow modelspatial diagnosis