Chang, Chia-Lin; Hsu, Shu-Han; McAleer, Michael - 2018
shocks, as well as symmetric, asymmetric and leverage effects. Three different Heterogeneous Auto Regressive (HAR) models …. Somewhat unusually, leverage effects are observed in EGARCH for Medical-type tourists, which shows a negative correlation … asymmetric impacts on volatility show that negative shocks have larger effects than do positive shocks. The leverage effect in …