Luc, Luc; Dufays, Arnaud; Rombouts, Jeroen V.K. - School of Economics and Management, University of Aarhus - 2011
GARCH volatility models with fixed parameters are too restrictive for long time series due to breaks in the volatility process. Flexible alternatives are Markov-switching GARCH and change-point GARCH models. They require estimation by MCMC methods due to the path dependence problem. An unsolved...