Distinctive impacts of ESG pillars on corporate financial performance: A random forest analysis of Korean listed firms

Abstract

This study investigates the distinct effects of the environmental, social, and governance (ESG) pillars on corporate financial performance (CFP) measured by ROE and ROA. Using a random forest regression on a sample of Korean-listed firms, we address the positive correlations among these pillars and explore the nonlinear relationships between CFP and individual pillars without pre-specified functional forms. The findings indicate that both environmental and governance performances positively affect CFP, with environmental performance having a more substantial impact but diminishing returns at higher levels. Social performance negatively affects CFP. The environmental pillar emerges as the most reliable predictor of CFP.