The Impact of Credit Ratings on Bond Credit Spreads

Abstract

The bond market is a key force serving the real economy, but its credit rating system still faces challenges such as low rating quality, insufficient differentiation and questionable credibility. In this context, this paper discusses the influence mechanism of credit rating on bond credit risk premium. The study shows that credit ratings significantly affect bond credit risk premiums by mitigating information asymmetry, providing risk pricing benchmarks, and affecting bond liquidity. The empirical analysis shows that the credit rating is significantly negatively correlated with the credit risk premium of bonds, and the higher the rating, the lower the premium. Heterogeneity analysis shows that this effect is more pronounced in small-scale enterprises and enterprises with low levels of corporate governance. Finally, this paper puts forward relevant policy suggestions from the perspectives of improving the credit rating system, strengthening regulatory policies, and improving the capabilities of market participants.