Introduction / Michael McAleer -- Assessment of risk ratings and risk returns for 120 representative countries / Michael McAleer -- Conditional volatility models for risk ratings and risk returns / Michael McAleer -- Univariate and multivariate estimates of symmetric and asymmetric conditional...

The paper considers the problem of volatility co-movement, namely as to whether two financial returns have perfectly correlated common volatility process, in the framework of multivariate stochastic volatility models and proposes a test which checks the volatility co-movement. The proposed test...