基于改进三阶段松弛测量-数据包络模型的火电上市公司碳排放效率评估研究
摘要：目的 计算火电上市公司的碳排放效率，对比分析效率排名居后的原因及排名前列的驱动因素，根据差异性条件对火电公司进行分组，探讨造成效率差异的影响因素。 方法 基于非期望产出的改进三阶段松弛值测量(slack based measure，SBM)-数据包络分析(data envelopment analysis，DEA)模型评估中国火电上市公司2016—2022年全要素碳排放效率。 结果 火电上市公司的碳排放效率逐年递增，并在剔除外部环境影响后整体下降。增加政府环保补贴可能会引发火电公司资本、人员和煤炭过度投入；增加地区研发投入对公司资产、人员和煤耗量具有积极作用；区域经济水平的提高会促进企业资产优化配置和人员有效管理，但会导致发电煤耗量的浪费。 结论 中央实控、低煤耗率和有碳排放交易的火电上市公司技术差距率更高，整体碳排放效率水平更优。
Abstract:Objectives Calculate the carbon emission efficiency of listed thermal power companies, compare and analyze the reasons why the efficiency ranks at the bottom and the top driving factors, group thermal power companies according to different conditions, and explore the influencing factors of efficiency differences. Methods Based on the improved three-stage undesirable-slack based measure (SBM)-data envelopment analysis (DEA) model to more accurately measure the total-factor carbon emission efficiency of China listed thermal power companies during 2016-2022. Results The carbon emission efficiency of listed thermal power companies rises annually and lowers when the effects of the external environment are taken into account. The increasing environmental subsidies from government may lead to excessive investment of capital, personnel and coal consumption in the thermal power companies. The increasing in regional R&D investment has a beneficial impact on company assets, personnel, and coal consumption. The most effective utilization of company assets and employees management will be promoted by a better regional economic level, but wasteful consumption of coal for power generation will occur. Conclusions The listed thermal power companies with central control, low coal consumption rate and carbon emissions trading have higher technology gap rate and better overall carbon emission efficiency.
标题：基于改进三阶段松弛测量-数据包络模型的火电上市公司碳排放效率评估研究
title:The Carbon Emission Efficiency of China’s Listed Thermal Power Companies: An Improved Three-Stage Slack Based Measure-Data Envelopment Analysis Model
作者：袁家海, 胡玥琳, 张健
authors:Jiahai YUAN, Yuelin HU, Jian ZHANG
关键词：改进三阶段松弛值测量-数据包络分析(SBM-DEA),Malmquist指数,火电上市公司,碳排放效率,
keywords:improved three-stage undesirable-slack based measure (SBM)-data envelopment analysis (DEA),Malmquist index,listed thermal power company,carbon emission efficiency,
发表日期：2024-06-30
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