My current company has engineers pair-programming full time. On first reaction, engineers and managers tend to think that results in 50% net productivity. My

My current company has engineers pair-programming full time. On first reaction, engineers and managers tend to think that results in 50% net productivity. My experience has shown that people tend to average each other out. There are days where I'm well aware of how poorly I'd program, but I can still navigate my pair out of the pit of despair. It also tends to cut down on meeting times because two sets of eyes are usually looking at any given piece of code, so knowledge disperses among the team organically so long as we swap pairs regularly.