There is some empirical evidence in a book called Peopleware. http://www.amazon.com/Peopleware-Productive-Projects-Teams-Second/dp/0932633439 http://www.amazon

There is some empirical evidence in a book called Peopleware. http://www.amazon.com/Peopleware-Productive-Projects-Teams-Second/dp/0932633439 http://www.amazon.com/Peopleware-Productive-Projects-Teams-S... I would paste some quotes but I lost my copy.