Spatio-temporal Evolution and Drivers of Carbon Emission Efficiency in Underdeveloped Regions under the"Dual-Carbon"Goal——Heterogeneity Analysis of Super-efficient SBM and GTWR Models
Under the constraint of"dual-carbon"target,the traditional high-carbon economic growth mode in less de-veloped regions is unsustainable.How to reduce carbon emissions while maintaining steady economic development is an important challenge for less developed regions.This paper measures the carbon emission efficiency of typical underdevel-oped regions during the period of 2006-2020 based on the super-efficient SBM model,explores the spatio-temporal evo-lution pattern of carbon emission efficiency,measures the influencing factors of carbon emission efficiency by adopting the spatial panel econometric model,and investigates the heterogeneity of the driving factors by applying the GTWR model.The study shows that in less developed regions,the high-high concentration areas of carbon emission efficiency show the polarization effect,while the low-low concentration areas show the spillover effect;the population size,technological progress and economic development are the main driving factors affecting the carbon emission efficiency,and the carbon emission efficiency is affected by its own lag effect;the driving factors are characterized by spatio-temporal heterogenei-ty,and the environmental"bottoming out"competition effect exists in regions with a low level of economic development,and the population agglomeration effect is gradually increasing in most cities,and technological progress shows a"learn-ing effect".Therefore,it is necessary to promote inter-regional synergistic management of carbon pollution,implement low-carbon development strategies according to local conditions,and promote the green development of underdeveloped regions.