We investigate whether the US equity market exhibits underreaction or overreaction. More specifically, we study the directional and magnitude effects associated with abnormal market reaction. The directional effect is the phenomenon that an extreme price movement will be followed by a price...

Recently, as an alternative to the GARCH model, the autoregressive random variance (ARV) model has been gaining popularity in the modelling of changing volatility, mainly because of the capability in capturing the stochastic nature of volatility. This article highlights the ARV model as an...

We show that the behaviour of the real exchange rates of the UK, Germany, France and Japan has been characterized by structural breaks, which changed the adjustment mechanism. In the context of a Time-Varying Smooth Transition Autoregression (TV-STAR) of the kind introduced by Lundbergh et al....