General Secretary of the Communist Party of the Soviet Union more than determine party membership composition. Stalin, its first incumbent, used the principles of democratic centralism to transform his office into that of party leader, and later leader of the Soviet Union. In 1934, the 17th Party Congress refrained from formally re-electing Stalin as General Secretary. However, Stalin was re-elected into all other positions and remained leader of the party without diminishment. In the 1950s, Stalin increasingly withdrew from Secretariat business, leaving the supervision of the body to Georgy Malenkov, possibly to test him as a potential successor. In October 1952, at the 19th Party Congress, Stalin restructured the party's
Economy of the Soviet Union and 20% respectively in 1991. Agriculture was the predominant occupation in the Soviet Union before the massive industrialization under Joseph Stalin. The service sector was of low importance in the Soviet Union, with the majority of the labor force employed in the industrial sector. The labor force totaled 152.3 million people. Major industrial products included petroleum, steel, motor vehicles, aerospace, telecommunications, chemicals, electronics, food processing, lumber, mining and defense industry. Though its GDP crossed $1 trillion in the 1970s and $2 trillion in the 1980s, the effects of central planning were progressively distorted due to the rapid growth of the