Masini, Ricardo P.; Medeiros, Marcelo C.; Mendes, Eduardo F. - 2020
-dimensional models. In time series context, it is mostly restricted to Gaussian autoregressions or mixing sequences. We study oracle … properties of LASSO estimation of weakly sparse vector-autoregressive models with heavy tailed, weakly dependent innovations with … and strong (ff-) mixing sequences as particular examples. From a modeling perspective, it covers several multivariate …