In the Soviet Union, Vladimir Lenin was very impressed by Taylorism, which he and Joseph Stalin sought to incorporate into Soviet manufacturing. Taylorism and the mass production methods of Henry Ford thus became highly influential during the early years of the Soviet Union. Nevertheless, "[...] Frederick Taylor's methods have never really taken root in the Soviet Union." The voluntaristic approach of the Stakhanovite movement in the 1930s of setting individual records was intrinsically opposed to Taylor's systematic approach and proved to be counter-productive. The stop-and-go of the production process – workers having nothing to do at the beginning of a month and 'storming' during illegal extra shifts at the end of the month – which prevailed even in the 1980s had nothing to do with the successfully taylorized plants e.g., of Toyota which are characterized by "continuous" production processes (heijunka) which are "continuously" improved (kaizen).