*2.4. Stage 4*

At Stage 4, multiple regression analysis was performed for all combinations of the selected non-collinear *Xn* aggregated in fourteen multitudes separately for each *Yn*. The aim was to reveal the variables with the highest positive, positive, negative, and the most negative effects on respected *Yn* in the Russian Arctic, in general, as well as separately in eight territories included in the Arctic zone of Russia (Figure 3):


**Figure 3.** Territories of the Arctic zone of Russia included in the study. Source: authors' development.
