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Effects of Mandatory Carbon Reporting on Greenwashing

Jody Grewal^1,2; Gordon Richardson¹; Jingjing Wang³

¹ University of Toronto · ² University of Toronto Mississauga · ³ University of Calgary

ABSTRACT We study the effects of mandatory environmental reporting on greenwashing. Our setting is a regulation in the United Kingdom requiring firms to report carbon emissions, or mandatory carbon reporting (MCR). Measuring greenwashing as the discrepancy between companies’ external carbon-related discussions in corporate social responsibility (CSR) reports and their underlying carbon performance, we find MCR leads to a decline in three types of greenwashing: excessive length, over-optimism, and vague commitments, relative to performance. MCR also curtails greenwashing in other (noncarbon) environmental disclosures, suggesting a spillover from MCR to firms’ broader environmental reporting. Drivers are shown to include higher expected reputational and regulatory risks for noncarbon issues after MCR, and a governance spillover, where the governance resources allocated to MCR also benefit noncarbon reporting. Data Availability: Data are publicly available from sources indicated in the text. JEL Classifications: M41; Q56; G38; Q54.

DOI

10.2308/tar-2023-0247

Volume

101 (4)

Pages

263-293

Language

en

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