Credit Ratings in the Age of Environmental, Social, and Governance (ESG)

Abstract

I present the first study that systematically examines the implications of ESG adoption by credit rating agencies. I find that, with a recent move by Standard & Poor’s and Moody’s towards incorporating ESG issues into their analysis, credit ratings positively reflect firms with lower carbon emissions and better social ratings. Despite the recognition of such issues by credit rating agencies, I discover no consistent evidence of improvement in the informational quality of credit ratings. This is concerning as the stated purpose of ESG adoption is to enhance their assessment of credit risk.