Are Hazardous Substance Rankings Effective? An Empirical Investigation of Information Dissemination about the Relative Hazards of Chemicals and Emissions Reductions

Abstract

Whether information dissemination about chemical hazards drives managers at facilities to undertake corresponding environmental actions, remains an open question that has not been adequately examined in the literature. We fill this gap in the literature by empirically investigating reductions in chemical emissions by facilities in relation to changes in the assessed hazard levels of chemicals evidenced in periodically-updated public information. We also examine the moderating effects of operational leanness – an attribute that prior studies have shown to be associated with better environmental performance – in our setting wherein the assessed hazard levels of chemicals change over time. We draw data from four US sources – the Substance Priority List from the Agency for Toxic Substances and Disease Registry, the Toxics Release Inventory from the EPA, the National Establishment Time-Series, and Compustat. We employ a panel model with facility-chemical- and time-fixed effects. We find that public information dissemination on chemical hazards is effective, as indicated by the significant association between increases in the assessed hazard levels of chemicals and greater subsequent emissions reductions. Specifically, we find that facilities reduce emissions by an additional 4.28% on average and their use of source reduction increases by 3.07% on average when the relative assessed hazard level of a chemical increases compared to when it decreases. We find that, overall, leaner facilities outperform less lean facilities with respect to emissions reductions. However, when the assessed hazard level increases, less lean facilities increase their emissions reductions more than leaner facilities. Our findings provide insights for managers prioritizing environmental actions, including the extent of emissions reductions achievable by practicing lean. Our results can also be leveraged by governmental/non-governmental organizations to anticipate responses to informational updates on chemical hazards, depending on characteristics of the affected facilities.

Keywords: environmental operations, hazardous chemicals, lean operations, information dissemination, TRI

JEL Classification: M1