In this paper, we empirically assess the predictive accuracy of a large group of models based on the use of principle components and other shrinkage methods, including Bayesian model averaging and various bagging, boosting, LASSO and related methods Our results suggest that model averaging does...

The resurgence of the pandemic and renewed lockdowns have slowed the recovery of the global economy, but the overall losses will be less severe than after the first coronavirus wave in spring 2020. Industry in particular continues to develop well. In contrast, retail trade and personal services...