Analysis and validation of energy-conservation and emission-reduction effects of economic agglomeration

Weiyi Kang (), Jingjun Guo () and Suisui Chen ()
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Weiyi Kang: Lanzhou University of Finance and Economics
Jingjun Guo: Lanzhou University of Finance and Economics
Suisui Chen: Ocean University of China

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2025, vol. 27, issue 6, No 90, 14668 pages

Abstract: Abstract Economic agglomeration, as a key factor of China’s economic transformation and development, offers great potential for both global and Chinese carbon reduction. This study explores the pathways and principles of economic agglomeration on CO2 emissions by applying the framework of spatial economic theory. The proposed theoretical model considers the stage of economic development, categorizes carbon emissions into productive and nonproductive activities, extends the production function to construct a carbon emissions function and reasoning, and analyzes the influence of the mechanism of economic resource aggregation on CO2 emissions at various phases of development. For the empirical analysis, a spatial panel model of 30 provincial districts in China is proposed and combined with a machine learning method to examine the nonlinear relationships between economic resource gathering and carbon release intensity. The results show a typical “N” curve relationship between economic agglomeration and CO2 emissions. When the thresholds exceed 175.573 and 333.333, the impact of economic agglomeration on emission-reduction changes from inhibition to promotion. In addition, energy consumption can act as a mediating variable for economic agglomeration to affect CO2 emissions, and there is a typical “inverted U” curve relationship. The “N” curve between economic aggregation and CO2 emissions with multiple inflection points is validated using machine learning. Accordingly, this study proposes that significant attention should be paid to the energy-conservation and emission-reduction mechanism of economic agglomeration. Furthermore, the linkage mechanism of energy-saving and emissions reduction between regions with complementary advantages is essential.

Keywords: Economic agglomeration; CO2 emissions; Energy consumption; Spatial econometrics; Machine learning (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s10668-024-04509-5

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