Research On Environmental Efficiency Of Chemical Enterprises And Its Influencing Factors Based On SBM-tobit Model

With the gradual implementation of the "Thirteenth Five-Year Plan",the concept of practicing green development and building a beautiful China has permeated all aspects of the economy and society.As a typical “two high and one surplus” industry with high energy consumption,high pollution,and excess production capacity,the environmental performance of the chemical industry has always been a hot spot of concern in all sectors of society.Most of the existing literature studies the environmental efficiency of China's industries from the macro level or the meso level,and few studies on the environmental efficiency of chemical companies based on the micro level.This thesis collects data on the environmental efficiency of listed companies in China's chemical industry and its influencing factors,uses empirical analysis methods to test their environmental protection achievements,and compares and analyzes the reasons for their differences.This research has certain theoretical and practical significance for guiding chemical companies to improve environmental performance and take the path of green development.This thesis takes chemical companies listed on the A-share market in Shanghai and Shenzhen as a research sample,and uses the SBM model with undesired output(SBM-Undesirable model)to measure the environmental efficiency of chemical companies in 2017-2018,and presents the status of environmental efficiency of chemical companies.Perform analysis.Then from the perspective of chemical industry sub-industries and the nature of equity,the environmental efficiency status and differences of different chemical industry sub-industries and different equity nature chemical enterprises are analyzed.Then,the environmental efficiency and economic efficiency of chemical companies are compared,and the impact of environmental pollution on efficiency is further examined.Finally,the influence factors of Tobit regression model on the environmental efficiency of chemical companies.The research results show that: from 2017 to 2018,the overall level of environmental efficiency of China's chemical companies is not high,and the environmental efficiency of different sub-sectors of the chemical industry is different.Among them,the basic chemical raw material manufacturing industry and chemical pesticide manufacturing industry have the lowest levels of environmental efficiency.The environmental efficiency of enterprises with different nature of equity is significantly different,and the environmental efficiency of state-owned enterprises is the lowest.The environmental efficiency of chemical enterprises is slightly lower than the economic efficiency of enterprises,and nearly half of them belong to the type of low economic efficiency-low environmental efficiency.Innovative capabilities,regional environmental regulations,the nature of corporate equity,the subsectors to which the company belongs,and capital deepening all have a significant impact on environmental efficiency.The contribution of this thesis: First,from the micro data of the company,the environmental efficiency of chemical companies is evaluated.From the perspectives of the chemical sub-sector and the nature of equity,the differences between the environmental efficiency of different companies are studied and the research of enterprise environmental accounting is riched;Secondly,based on the interests of cooking theory and sustainable development theory,combined with the actual situation of chemical companies,to explore the influencing factors of environmental efficiency,to provide new ideas for environmental governance for government departments and business managers.