Carbon disclosure and common ownership

The crossholding of multiple firms by major shareholders in the same industry is known as common ownership. In this article, we examine how common ownership affects the carbon-related disclosure practices of cross-held firms. We report that common ownership decreases a firm’s propensity to disclose carbon information as well as the quality of such disclosures. A one standard deviation increase in measures of common ownership decreases the likelihood of participating in the Carbon Disclosure Project (CDP) survey by as much as 19.4%. Our results are robust to exogenous events, such as changes in common ownership and robustness tests, including Heckman two-stage regression and the exclusion of the financial sector. Further analyses demonstrate that the negative impact of common ownership on carbon disclosures is stronger in carbon-intensive sectors than in other sectors and for hard than for soft disclosures.