Pesaran, M. Hashem; Pick, Andreas; Timmermann, Allan - 2022
-sectional (N) and time (T) dimensions and varying degrees of parameter heterogeneity. We investigate conditions under which panel … accuracy depend on the degree of parameter heterogeneity, whether heterogeneity is correlated with the regressors, the goodness … forecasts based on pooled and individual estimates and develop a novel forecast poolability test that can be used as a …