Notes, Comments and Preliminary results Oct 22 2012 Gijsbert Suren and Guilherme Moura   Heteroskedastic Dynamic Factor Models: A Monte Carlo Study   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result   Jul 03 2012 João Caldeira , Guilherme Moura and André A.P. Santos   Portfolio optimization using a parsimonious multivariate GARCH model: application to the Brazilian stock market   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result