> Why the disparity between wages, if each worker operates the same presses for similar hours? It's down to individual productivity, Pelc says. The more records they press in each shift, the more money they take home at the end of the month.<p>I find this interesting. I've had my share of jobs where it seems that there's no point in doing beyond the minimum required because there's no reward and often not even recognition for the extra productivity. The only thing that really comes close is sales jobs where commission can stack up, but that's not necessarily comparable.