 In addition, according to Korotayev, there should be special attention to decreasing distilled spirits consumption, illegal alcohol production, nonbeverage alcohol consumption, and enforcement of current governmental regulations.In late 2014 they correctly predicted the forthcoming return of Russia to negative natural population growth.Korotayev and his colleagues have demonstrated that Protestantism has indeed influenced positively the capitalist development of respective social systems not so much through the "Protestant ethics" (as was suggested by Max Weber) but rather through the promotion of literacy.