We study correlations between the risk-free rate and sovereign yields of ten euro area countries using smooth transition conditional correlation GARCH (STCC-GARCH) specifications, controlling for credit risk in mean and variance equations and conditioning non-linearly to liquidity risk....

We use a Smooth Transition Conditional Correlation GARCH (STCC-GARCH) model applied to the euro area monetary policy rates and sovereign yields of Italy, Spain and Germany at 5-year maturity to estimate the threshold level of the signals above which the sovereign bond market moves to a crisis...