 While agriculture, retail, services, food and light industries were mostly in private hands, the state retained control of heavy industry, transport, banks, wholesale and international trade ("commanding heights").State-owned enterprises competed with each other, the role of the Gosplan of the Soviet Union was limited to forecasts that determined the direction and size of public investment.One of the fundamental contradictions of Bolshevism was the fact that the party that called itself "workers" and its rule the "dictatorship of the proletariat" came to power in an agrarian country where factory workers constituted only a few percent of the population, and most of them were recent immigrants from the village who have not yet completely broken ties with her.