It describes the fact that we tend to make fewer contributions when we are in a group versus when we work alone (or are solely charged with the responsibility). 

When a number of people could take it upon themselves to repair something, social loafing says a high percentage of them will assume that someone else will take the initiative to complete the task.

Reducing social loafing tendency and increasing contributions among your team comes down to trust. So find people you trust and then give them the ability to make decisions.

And sometimes it's important to give people the option to not take action if that’s what they think is the rig...