Sovereign credit ratings in Latin America and the Caribbean: history and impact on bond spreads

In this study, we examine the history of sovereign credit ratings in Latin America and the Caribbean, the evolution of credit quality, and the relationship between rating changes and the cost of accessing external financing as reflected in the behavior of sovereign bond spreads. We apply an event study to estimate the impact of credit rating changes on sovereign bond spreads in the past fifteen years. We find that the impact is asymmetric (with a larger impact for downgrades) and is sensitive to both spatial and temporal clustering. The results suggest that the quality of sovereign credit is important in determining the cost of access to private external financing.