铁道运输与经济2025，Vol.47Issue(6)：11-23,13.DOI:10.16668/j.cnki.issn.1003-1421.2025.06.02
基于SBM-Malmquist-Tobit模型的铁路运输企业碳排放效率测度及影响因素分析
Measurement of Carbon Emission Efficiency and Analysis of Influencing Factors in Railway Transportation Enterprise Based on SBM-Malmquist-Tobit Model
摘要
Abstract
Assessment of carbon emission efficiency and identification of influencing factors are prerequisites for enhancing the management effectiveness of railway transportation enterprises and promoting low-carbon development in the railway industry.This study measured the carbon emissions of 18 railway bureau group companies and constructed a carbon emission efficiency measurement method combining slack-based measurement data envelopment model with undesirable outputs and the Malmquist index model to reveal the changing trends of carbon emission efficiency across railway bureau group companies.The results show that from 2016 to 2021,the carbon emissions of the railway transportation enterprises present an increase from 57 808 600 tons to 62 788 500 tons,with an amplitude of 8.61%.Regional heterogeneity exists in the carbon emission efficiency of the railway bureau group companies,showing a spatial pattern with higher efficiency in eastern regions,followed by the central and western regions,and lower efficiency in northeastern regions.Technological innovation is the main driver of carbon emission efficiency improvement in railway transportation enterprises.Low-carbon transformation of railway transportation enterprises can be promoted by increasing investment in low-carbon technologies,facilitating their applications,and improving scale and efficiency.关键词
铁路运输企业/碳排放效率/SBM模型/Malmquist指数模型/Tobit模型Key words
Railway Transportation Enterprise/Carbon Emission Efficiency/SBM Model/Malmquist Index/Tobit Model分类
交通运输引用本文复制引用
赵锐,赵祎杰,熊欣,唐玥..基于SBM-Malmquist-Tobit模型的铁路运输企业碳排放效率测度及影响因素分析[J].铁道运输与经济,2025,47(6):11-23,13.基金项目
国家自然科学基金项目(U2268208,41571520) （U2268208,41571520）
四川省青年科技创新团队项目(2022JDTD0005) （2022JDTD0005）
中国中铁股份有限公司科技研究开发计划项目(2022-重大-01,2023-重大-06) （2022-重大-01,2023-重大-06）
四川循环经济研究中心课题(XHJJ-2304) （XHJJ-2304）
四川省自然科学基金项目(2024NSFSC0880) （2024NSFSC0880）
中央高校基本科研业务费项目(2682021ZTPY088) （2682021ZTPY088）
