Though the econometrics literature on this area is extensive, in Peru few studies have been dedicated to the analysis of Önancial returns in general and volatility in particular. As part of an empirical research agenda suggested by Humala and RodrÌguez (2013), this paper represents one of the...

This paper utilises “a class test for fractional integration” associated with the seminal contribution of Hinich and Chong (2007) to appraise the possibility that South African Development Community (SADC) real exchange rates can be treated as long memory processes. The justification for...

We propose a parametric state space model with accompanying estimation and forecasting framework that combines long memory and level shifts by decomposing the underlying process into a simple mixture model and ARFIMA dynamics. The Kalman filter is used to construct the likelihood function after...