【报告主题】The Effect of Mandatory Carbon Disclosure along Global Supply Chains
【主讲嘉宾】汪诗蘅，香港科技大学
【报告时间】2023年10月24日 14:00
【报告地点】会计学院108室
【内容提要】
We examine whether and how mandatory carbon disclosure affects the transmission of carbon emissions through a firm’s global supply chain. Using the 2013 UK carbon disclosure regulation that mandates the reporting of Scopes 1 and 2 emissions (from firms’ own activities and purchased energy) but not Scope 3 emissions (from purchased goods and services), we find that affected UK firms experience a decrease in Scopes 1 and 2 emissions but an increase in Scope 3 emissions following the mandate. Consistent with emission outsourcing, affected UK firms exhibit a substitutional relationship between the changes in the Scopes 1 and 3 emissions. Further, foreign suppliers of affected UK firms, but not domestic suppliers, increase Scope 1 emissions following the disclosure mandate. This increase is more pronounced among foreign supplier with stronger and longer relationship with affected UK firms and in industries with fewer customers. Our findings highlight the importance of considering corporate supply chains when implementing mandatory carbon disclosures.