Chu, L.F.; McAleer, M.J.; Chen, C-C. - Erasmus University Rotterdam, Econometric Institute - 2009
purpose of this paper is to analyze these two indexes in order to capture ENSO volatility. The empirical results show that … both the ARMA(1,1)-GARCH(1,1) and ARMA(3,2)-GJR(1,1) models are suitable for modelling ENSO volatility. Moreover, 1998 is a … turning point for the volatility of SOI, and the ENSO volatility has became stronger since 1998 which indicates that the ENSO …