The Spatial-Temporal Differentiation and Spatial Spillover Effects of Urban Carbon Total Factor Productivity—An Empirical Study Based on 283 Prefecture-Level Cities in China
Improving urban carbon total factor productivity is the key to orderly promote the green and low-carbon transforma-tions of the economy and actively implement the carbon peak and carbon neutrality.Based on the biennial non-radial directional distance function and Laenberger productivity indicator,this paper reasonably measures and decomposes the carbon total factor productivity of 283 prefecture-level cities in China during 2003-2020.In addition,the study aims to establish the productivity gap indicator based on the meta-frontier theory,explore the sources of spatial-temporal differentiation in the growth rate of car-bon total factor productivity among regions,and analyze the impact of urban agglomeration effects on the spatial spillover of car-bon total factor productivity.It can be discovered that:urban carbon total factor productivity is still at a low level,despite some growth,technical progress is the main driving force for improving carbon total factor productivity.According to the productivity gap change index,the carbon total factor productivity of urban agglomerations is divided into positive main peak type,negative main peak type,and recurrent fluctuation type.The carbon total factor productivity has positive spillover effects in space,the ur-ban agglomeration effects show a downward and then upward trend in both local and neighboring carbon total factor productivity.Based on this,it is suggested in the paper that we should balance input intensification effect with output optimization effect,choose a low-carbon transformation path tailored to local conditions and enhance the concept of spatial governance,and thus es-tablish a regional collaborative mechanism to promote low-carbon economic growth.
citycarbon total factor productivityspatial-temporal differentiationspatial spillover effect
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