The Sovereign Effect on Bank Credit Ratings

We investigate the effect of sovereign credit ratings on bank credit ratings, known as the sovereign effect. Our study differs from the literature in three respects. First, we examine whether bank ratings below, at, or above the sovereign ceiling impact the sovereign effect. We find that the sovereign effect holds in all cases. Next, we consider the asymmetric impact of the sovereign effect on bank ratings with or without the ceiling effect. We find that a downgrade exhibits a stronger sovereign effect than an upgrade. Third, we examine whether the asset deterioration or the stable foreign fund hypotheses are possible explanations for the sovereign effect. Our results support both hypotheses.