首页|环境规制、绿色技术创新与违约风险

环境规制、绿色技术创新与违约风险

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环境规制不断升级是绿色低碳转型的制度保障和战略举措.然而近年来债券违约事件频发,环境规制是否加剧了违约风险?本文基于债券违约事件、OECD提出的环境政策紧缩指数和绿色专利数据样本,建立零膨胀泊松模型检验环境规制对债券违约风险的影响,并着重分析绿色技术创新的风险抑制效应.研究表明:(1)环境规制增加了企业的现金耗损和融资成本,从而使发债企业违约风险上升.(2)绿色技术创新具有重要风险抑制作用,在环境规制升级过程中,拥有绿色技术创新的企业总体上违约风险更低.(3)环境规制增强后,绿色技术创新有助于缓解净现金流下降和融资成本增加的状况,使企业拥有更多的现金流,所发行债券的溢价也更低,因此违约风险更低.本文的研究结论对全面推进绿色转型、实现"双碳"战略目标的高质量发展以及深化绿色金融具有重要政策意义.
Environmental Regulation,Green Technology Innovation and Default Risk
Environmental regulation refers to the policies,regulations and strategic measures taken by a country to limit or eliminate pollution for the purpose of environmental protection.It is a method for the government to solve the"market failure"of environmental problems.From the scientific outlook on development to the strategic deployment of the two-carbon goal,the intensity of China's environmental regulation continues to increase.Data from the Ministry of Ecology and Environment of the People's Republic of China show that more than 119 new or revised environmental pollution control standards have been issued since 2010.In January 2015,the New Environmental Protection Law was implemented.At the end of 2017,China launched carbon emissions trading.On January 1,2018,the environmental protection tax was officially levied.In March 2018,the Ministry of Ecology and Environment of the People's Republic of China was established to promote environmental protection and climate change policies.In 2020,the Central Economic Work Conference listed"carbon peak and carbon neutral"as a key task,and the scope of environmental regulation was further expanded from heavily polluting industries to industries with high energy consumption and high emissions.At the same time,it is also supplemented by special actions such as environmental protection management,special supervision,to promote the implementation of policies.Therefore,system design,comprehensive deployment and continuous strengthening of environmental regulation have become an inevitable trend.In the financial sector,central banks and financial institutions have also reached a consensus:environmental and climate risks will lead to financial risks,and financial institutions must strengthen environmental and climate risk supervision.In 2017,eight regulatory departments,including the People's Bank of China,jointly initiated the establishment of the Central Banks and Supervisors Network for Greening the Financial System(NGFS),which is dedicated to monitoring and studying the impact of environmental and climate factors on financial risks.In 2019,the organization officially proposed that climate change is the source of financial risks.China's bond market has experienced frequent defaults in recent years.Are environmental regulations a cause of the subsequent defaults in the bond market?If so,what are the mechanisms that trigger default risk?Is there a viable solution?The impact of environmental regulations on default risk has not been discussed deeply.Green technology innovation plays an important role in the transmission process of environmental regulation to default risk.On the one hand,green technology innovation,like ordinary innovation,helps to improve product competitiveness and build competition barriers,thereby increasing enterprise value.It also helps to obtain external financing,thus reducing default risk.On the other hand,green technology innovation is a special technological innovation with environmental protection as an important goal,which may play an important role in the default risk caused by environmental regulations.Based on bond default events,environmental policy stringency(EPS)index data proposed by OECD,and green patent data samples,this paper establishes a zero-inflation Poisson model to test the impact of environmental regulations on bond default risk and analyzes the risk inhibition effect of green technology innovation.The mechanism of the above influence is further explored from the perspective of cash holding and financing cost by a fixed effects model.The innovations of this paper are as follows:First,environmental regulation is included in the study of determinants of default risk.With a forward-looking perspective,this study enriches the understanding of bond default factors analysis,provides a basis for government policy prediction and policy formulation,and gives an important reference for enterprises and financial institutions to effectively prevent bond default risk.Second,from the perspective of cash depletion and financing cost,it reveals the channels through which environmental regulations affect default risk.Third,we test the risk inhibition effect of green technology innovation to provide strategic guidance for enterprises to cope with the upgrading of environmental regulations and to provide risk prediction guidance for bond market investors.The research shows that environmental regulations increase cash depletion and financing costs of enterprises,thus increasing the default risk of debt-issuing enterprises.Green technology innovation has an important risk inhibition effect.In the process of environmental regulation upgrading,enterprises with green technology innovation have a lower default risk.After the enhancement of environmental regulations,green technology innovation can help alleviate the decline in net cash flow and the increase in financing costs.In this case,enterprises have more cash flow and lower bound premiums,which leads to a lower default risk.The research findings in this paper have important policy implications for promoting green transformation,achieving high-quality development of"dual carbon"strategic goals,and deepening green finance.First,the bond approval department should pay more attention to the assessment of enterprises'environmental protection input before the bond issuance.It should strengthen the review and approval process of environmental impact assessments,conduct evaluations of green technologies.Second,bond issuers should strengthen green technology innovation,convert innovation into green and low-carbon productivity,invest in green technology from the perspective of dual-carbon goals,and continuously enhance technology to meet the requirements of green and low-carbon development.

Environmental RegulationDefault RiskGreen Technology InnovationFinancing CostZero-inflated Poisson Model

魏晓云、韩立岩

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首都经济贸易大学统计学院,北京 100070

北京航空航天大学经济管理学院,北京 100191

北京雁栖湖应用数学研究院数字经济实验室,北京 101408

环境规制 违约风险 绿色技术创新 融资成本 零膨胀泊松模型

国家自然科学基金国家自然科学基金

7167302071690244

2024

金融研究
中国金融学会

金融研究

CSTPCDCSSCICHSSCD北大核心
影响因子:2.047
ISSN:1002-7246
年,卷(期):2024.(6)
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