In USSR it was a planned economy as everybody knows. Producing less than planned amount was bad - from possibility of it being treated as sabotage in Stalin times to not getting bonus and being openly shamed in later times. Producing more than planned amount was good - bonus and "honour roll". Produce much more than planned amount, especially several times in a row - your planned amount will be adjusted upward, and not only yours, the colleagues in similar jobs/situations would get their plans adjusted up too. So the art was to produce just a bit more, enough to get bonus and honours, yet not trigger the adjustment up.