Corporate Balance Sheets and Sovereign Risk Premia

Abstract

This paper studies sovereign debt pricing in the presence of corporate debt. We find that foreign currency (FC) corporate external debt empirically explains sovereign credit spreads in emerging countries, even after controlling for sovereign debt and global factors. Decomposing sovereign credit spreads into their default premium (default probability) and risk premium components, we find that a 1% increase in FC corporate external debt is associated with a 5 basis point increase in the sovereign risk premium but a small and insignificant change in the sovereign default premium. We incorporate a productive corporate sector and risk-averse foreign lenders into a quantitative sovereign default model. An increase in FC corporate external debt has three effects on tax revenue, and thus sovereign spreads. It increases the mean of tax revenue due to higher investment, increases the variance of tax revenue due to higher exposure to exchange rate risk, and changes the covariance of sovereign defaults and the state of foreign lenders due to the safe currency property of FC. The first two effects counteract each other and help explain the insignificant change in the sovereign default premium, while the third effect results in a higher sovereign risk premium. Corporates do not internalize their effect on sovereign debt pricing, leaving room for policy improvement.

Keywords: sovereign risk, corporate debt, currency mismatch

JEL Classification: F34, F41, G12, G15, G38