ESG, self-selection problem, endogeneity, Heckman model, idiosyncratic risk, corporate financial performance, external governance mechanisms
CDS market, sovereign ceiling rule, Difference-in-Differences, political risk
G33 Credit ratings, sovereign ceiling, default probability, financial strength, and crises
Political uncertainty, Geopolitical risk, Party conflict, Bitcoin market, Financial connectedness
CDS market, credit rating, sovereign ceiling rule, Difference-in-Differences, political risk.