Total-factor energy efficiency of ten major global energy-consuming countries  

作　　者：Xuan Wang Yonglong Lu Chunci Chen Xiaojie Yi Haotian Cui 

机构地区：[1]State Key Laboratory of Urban and Regional Ecology,Research Centre for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China [2]State Key Laboratory of Marine Environmental Science and Key Laboratory of the Ministry of Education for Coastal Wetland Ecosystems,College of the Environment and Ecology,Xiamen University,Fujian 361102,China [3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Environmental Sciences》2024年第3期41-52,共12页环境科学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos.71761147001 and 42030707);the International Partnership Program by the Chinese Academy of Sciences (No.121311KYSB20190029);the Fundamental Research Fund for the Central Universities (No.20720210083)。

摘　　要：Improving energy efficiency is regarded as a key path to tackling global warming and achieving the Sustainable Development Goals(SDGs).In 2020,the energy consumption of the world's ten major energy-consuming countries accounted for 66.8%of the global total.This paper applied data envelopment analysis(DEA)to calculate these ten major energyconsuming countries'total-factor energy efficiency(TFEE)at national and sectoral levels from 2001-2020,and explored the infuencing factors of total-factor energy efficiency with the Tobit regression model.The results showed significant difference in the ten countries'energy efficiency.The United States and Germany topped the list for total-factor energy efficiency,while China and India were at the bottom.Meanwhile,the energy efficiency of the industrial subsector has increased significantly over the past two decades,while that of the other subsectors has been relatively fat.The industrial structure upgrading,per capita GDP,energy consumption structure,and foreign direct investment had significant impacts on energy efficiency with national heterogeneity.Energy consumption structure and GDP per capita were determinative factors of energy efficiency.

关 键 词：Total-factor energy efficiency SBM-UN model Major energy-consuming country Carbon emission reduction 

分 类 号：X322[环境科学与工程—环境工程] F416.2[经济管理—产业经济]