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Slower than normal economic growth that occurred in the Soviet Union in the 1960s and especially the 1970s, roughly corresponding with the time Leonid Brezhnev was General Secretary of the Communist Party. Brezhnev put an end to many of the reforms begun under Nikita Khrushchev, which resulted in severe shortages of many goods. The Soviet Union had difficulty balancing supply with demand in the economy, and many goods were unavailable in stores for long periods of time. Stagnation continued even after Brezhnev's death in 1982 and may have been a contributing factor in the USSR's collapse.