The ESG effect on the cost of debt financing: a sharp RD analysis

Environmental, social, and governance (ESG) factors have become increasingly relevant within the financial world. Despite extensive evidence regarding the equity side, limited studies in the literature have investigated the potential effects of ESG performance on the main drivers of debt. This study aims to understand whether there is a positive effect from a cost of debt standpoint for corporations with relatively better ESG performance. Using the ESG score by Refinitiv and a sharp regression discontinuity design, we do not find statistically significant evidence for discrete jumps in correspondence with the ESG score average for the cost of debt of European nonfinancial corporates over the 2018–2020 period. In a sharp regression discontinuity setting, we obtain analogous results by developing a linear probability model.