> I am reminded of a study where the hue of lights in a factory was changed, and the workers were reported happier and more productive. Then they changed it again (actually, to the original hue), and the workers reported being happier still and more productive!

> So what lighting hue was best? Irrelevant, the important thing was that workers perceived that management was paying attention to their wellbeing.

I doubt it would work if they changed the place of tools, the layout of the factory, stuff like that.