The thing I can't understand is that this goes against almost every productivity study I've come across. Most productivity articles I've read seem to state that yes, you can productivity work more than 40 hours but only for a few weeks. After that time, you start getting burned out and the gain in productivity starts to nosedive until it is worse than if you just worked normal hours.
Is there something I'm missing? Is there an actual business benefit for having people work all the time?
If you're an incompetent manager looking for a way to advance, then you WANT people working overtime. It means to your (incompetent) superiors that you are a good leader, and that you need more people, which means more responsibility, and therefore a raise -- if not where you are now, then at your next job (I managed a team of 40 poeple!).
Is there something I'm missing? Is there an actual business benefit for having people work all the time?