Does environmental investment pay off?—portfolio analyses of the E in ESG during political conflicts and public health crises

Abstract

This paper examines the contribution of environmental investment on firm value during the Russia-Ukraine War and Global Public Health Crisis. Using media-based environmental scores, we investigate the performance of the emission-reduction-based and green-innovation-based portfolios. The results indicate that while engaging in environmental activities decreases firm value during the noncrisis time, it creates value when companies face market-wide crises. Our findings suggest that environmental investment serves as a risk-hedging vehicle for political and health crises. In addition, compared to corporate ESG disclosures, firm-level media-based environmental scores mitigate the endogeneity between a company's ESG disclosure policies and its firm characteristics.