Evolution analysis of the decoupling state and drivers between economic growth and CO2 emissions in RCEP member countries

With the development of urban cities and their economic growth, the increase of CO2 emissions has become challenging, since the Regional Comprehensive Economic Partnership (RCEP) was officially established. To address this challenge, this study analyzes the historical trends in the RCEP economy and...

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Main Authors: Xichun Luo, Honghao Zhao
Format: Article
Language:English
Published: Elsevier 2025-05-01
Series:Energy Strategy Reviews
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Online Access:http://www.sciencedirect.com/science/article/pii/S2211467X25000720
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author Xichun Luo
Honghao Zhao
author_facet Xichun Luo
Honghao Zhao
author_sort Xichun Luo
collection DOAJ
description With the development of urban cities and their economic growth, the increase of CO2 emissions has become challenging, since the Regional Comprehensive Economic Partnership (RCEP) was officially established. To address this challenge, this study analyzes the historical trends in the RCEP economy and CO2 emissions and determines the decoupling state of each member country using the Tapio decoupling model. Furthermore, this research obtains the driving factors affecting CO2 emissions using the Logarithmic Mean Divisia Index (LMDI) model and analyses the driving forces of each member country to achieve the decoupling process by combining the LMDI and Tapio decoupling models. The results show that (1) Japan is the best decoupling country in terms of the decoupling relationship between economic growth and CO2 emissions, while China has the most stable performance. Overall, developed countries exhibit better decoupling state than developing countries. From the aspect of proportion of decoupling states, the optimal state strong decoupling (SD) and the sub-optimal state weak decoupling (WD) account for 20.95 % and 31.43 %, respectively. The total percentage of these two states exceeds 50 %, which indicates a good decoupling status in the RCEP region. (2) The key drivers of CO2 emission growth are economic and population effects, while the key driver of carbon emission reduction is the energy intensity effect. (3) The energy intensity effect is the main driver to achieve the decoupling process, while the greatest obstacle to the decoupling process is the economic effect. Finally, this study provides policy recommendations for the early realization of the decoupling process of economic growth and CO2 emissions in RCEP member countries.
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spelling doaj-art-0a935a424aec4aab97241748df83b59f2025-08-20T02:31:00ZengElsevierEnergy Strategy Reviews2211-467X2025-05-015910170910.1016/j.esr.2025.101709Evolution analysis of the decoupling state and drivers between economic growth and CO2 emissions in RCEP member countriesXichun Luo0Honghao Zhao1The Institute for Sustainable Development, Macau University of Science and Technology, Taipa, Macao, 999078, ChinaDepartment of Decision Sciences, School of Business, Macau University of Science and Technology, Taipa, Macao, 999078, China; Corresponding author. Department of Decision Sciences, School of Business, Macau University of Science and Technology, Taipa, Macao, 999078, China.With the development of urban cities and their economic growth, the increase of CO2 emissions has become challenging, since the Regional Comprehensive Economic Partnership (RCEP) was officially established. To address this challenge, this study analyzes the historical trends in the RCEP economy and CO2 emissions and determines the decoupling state of each member country using the Tapio decoupling model. Furthermore, this research obtains the driving factors affecting CO2 emissions using the Logarithmic Mean Divisia Index (LMDI) model and analyses the driving forces of each member country to achieve the decoupling process by combining the LMDI and Tapio decoupling models. The results show that (1) Japan is the best decoupling country in terms of the decoupling relationship between economic growth and CO2 emissions, while China has the most stable performance. Overall, developed countries exhibit better decoupling state than developing countries. From the aspect of proportion of decoupling states, the optimal state strong decoupling (SD) and the sub-optimal state weak decoupling (WD) account for 20.95 % and 31.43 %, respectively. The total percentage of these two states exceeds 50 %, which indicates a good decoupling status in the RCEP region. (2) The key drivers of CO2 emission growth are economic and population effects, while the key driver of carbon emission reduction is the energy intensity effect. (3) The energy intensity effect is the main driver to achieve the decoupling process, while the greatest obstacle to the decoupling process is the economic effect. Finally, this study provides policy recommendations for the early realization of the decoupling process of economic growth and CO2 emissions in RCEP member countries.http://www.sciencedirect.com/science/article/pii/S2211467X25000720Regional comprehensive economic partnershipCO2 emissionsDecoupling analysisLogarithmic mean divisia index
spellingShingle Xichun Luo
Honghao Zhao
Evolution analysis of the decoupling state and drivers between economic growth and CO2 emissions in RCEP member countries
Energy Strategy Reviews
Regional comprehensive economic partnership
CO2 emissions
Decoupling analysis
Logarithmic mean divisia index
title Evolution analysis of the decoupling state and drivers between economic growth and CO2 emissions in RCEP member countries
title_full Evolution analysis of the decoupling state and drivers between economic growth and CO2 emissions in RCEP member countries
title_fullStr Evolution analysis of the decoupling state and drivers between economic growth and CO2 emissions in RCEP member countries
title_full_unstemmed Evolution analysis of the decoupling state and drivers between economic growth and CO2 emissions in RCEP member countries
title_short Evolution analysis of the decoupling state and drivers between economic growth and CO2 emissions in RCEP member countries
title_sort evolution analysis of the decoupling state and drivers between economic growth and co2 emissions in rcep member countries
topic Regional comprehensive economic partnership
CO2 emissions
Decoupling analysis
Logarithmic mean divisia index
url http://www.sciencedirect.com/science/article/pii/S2211467X25000720
work_keys_str_mv AT xichunluo evolutionanalysisofthedecouplingstateanddriversbetweeneconomicgrowthandco2emissionsinrcepmembercountries
AT honghaozhao evolutionanalysisofthedecouplingstateanddriversbetweeneconomicgrowthandco2emissionsinrcepmembercountries