We propose generalised stochastic volatility models with Markov regime changing state equations (SVMRS) to investigate the important properties of volatility in stock returns, specifically high persistence and smoothness. The model suggests that volatility is far less persistent and smooth than...

This article aims to test the hypothesis of contagion between the in- dices of nancial markets from the United States to Brazil, Japan and England for the period 2000 to 2009. Time varying copulas were used to capture the impact of Sub-prime crisis in the dependence between mar- kets. The...