工程研究——跨学科视野中的工程2026，Vol.18Issue(1)：59-69,11.DOI:10.3724/j.issn.1674-4969.20240047
交通基础设施上市公司碳排放强度同群效应因素分析
Analysis of Cohort Effect Factors on Carbon Emission Intensity of Listed Transport Infrastructure Companies
摘要
Abstract
Low-carbon development serves as a fundamental prerequisite for sustainable development and a vital measure in addressing the global warming issue.Currently,road transport stands as the dominant mode of transportation with the largest carbon footprint in China.Facing the new normal of economic development,transport infrastructure enterprises must embark on a low-carbon transformation.The carbon emission intensity of these enterprises is intricately linked to their low-carbon behavioral decisions.The decision to mitigate pollution and reduce carbon emissions constitutes a costly and risky investment endeavor for transport infrastructure enterprises,often requiring non-independent decision-making.The coherence in carbon emission intensity among listed transport infrastructure companies bears implications on the green and low-carbon transformation of these enterprises. This paper employs the OLS regression model,utilizing data from China's A-share transport infrastructure listed companies spanning 2012 to 2022.It constructs two primary models:one for testing the existence of cohort effects within transport infrastructure enterprises,and another for examining the moderating effects of these cohort effects.The analysis delves into the cohort effect of carbon emission intensity within China's transport infrastructure industry and its underlying influencing factors,while also investigating the contributors to the cohort effect on enterprises'carbon emission intensity.Additionally,the study examines the factors that give rise to the cohort effect in enterprises'carbon emission intensity. Key findings reveal:① A significantly positive cohort effect is observed among transport infrastructure cohort enterprises at the 1%level,regarding carbon emission intensity.② The geographical distance between the focal enterprise and cohort enterprises diminishes the cohort effect on carbon emission intensity within transport infrastructure enterprises.③ Both environmental regulation and industry competition intensity,as moderating variables,amplify the cohort effect on enterprises'carbon emission intensity,with environmental regulation exerting a more pronounced influence. Finally,based on the findings of this paper,the following insights emerge:① Transportation infrastructure enterprises are effectively motivated to enhance their green and low-carbon performance through the cohort effect of carbon emission intensity,thereby guiding the industry towards high-quality,efficient green transformation and advancing China's carbon peaking and neutrality goals.② Environmental regulation can serve as a catalyst for promoting the green transformation of transport infrastructure enterprises.The government can strengthen environmental regulations for enterprises,harnessing the cohort effect to encourage inter-enterprise collaboration,thereby reducing carbon emissions and facilitating low-carbon transformation.③When crafting low-carbon policies,the government can capitalize on the cohort effect of carbon emission intensity among transport infrastructure enterprises,fostering an inter-enterprise competition"snowball"effect and enhancing the efficacy of government oversight.关键词
交通基础设施/碳排放强度/普通最小二乘法(OLS)回归模型/同群效应/减污降碳Key words
transport infrastructure/carbon intensity/OLS regression modelling/cohort effect/pollution and carbon reduction分类
管理科学引用本文复制引用
陈赟,金孜怡..交通基础设施上市公司碳排放强度同群效应因素分析[J].工程研究——跨学科视野中的工程,2026,18(1):59-69,11.基金项目
湖南省交通厅科技进步与创新计划项目(201419) （201419）
