We analyze the impact of emerging-market sovereign bonds on emerging-market corporate bonds by examining their spanning enhancement, price discovery, and issuance effects. We find that the effect of spanning enhancement is positive and large; over one-fifth of the information in corporate yield spreads is traced to innovations in sovereign bonds; and most of these effects are due to discovery and spanning of systematic risks. Further, issuance of sovereign bonds, controlling for endogeneity of market-timing decisions, lowers corporate yield and bid-ask spreads. Our results indicate that sovereign securities act as benchmarks and suggest they promote a vibrant corporate bond market.

ABSTRACT We examine the relative pricing of nominal Treasury bonds and Treasury inflation‐protected securities in the presence of U.S. default risk. Hedged breakeven inflation is significantly positively related to U.S. default risk, driven by correlation between shocks to default risk and both shocks to inflation swap premia and Treasury yields. To understand the mechanisms through which default risk is related to inflation swaps and sovereign yields, we estimate an affine term structure model to capture their joint dynamics. Our estimation implies that the interaction between inflation dynamics and default is the primary source of differential pricing.