This paper estimates the volatility of most important European stock market indices during the global financial crisis started in 2008, such as DAX, CAC40, FTSE100, among others. The estimation of volatility is made from a new family of stochastic volatility models proposed by Santos, Franco,...

Intervention analysis has been recently the subject of several studies, mainly because real time series present a wide variety of phenomena that are caused by external and/or unexpected events. In this work, transfer functions are used to model different forms of intervention to the mean level...