Since there was a "one and only" narrative about history and the future of society, the studies of humanities were quite limited. The "true" economic thought leader was Marx and everything else was considered unorthodox and evil. Popular western fields of study like psychology, sociology and behaviouralism were also considered dangerous or even unheard of.<p>That was compensated by a great push towards exact sciences, accompanied by the fast pace of industrialisation, electrification and mechanisation.