free rider problem
The free rider problem : People are unlikely to work 100% in a team, when: They feel their work has little intrinsic meaning or value (e.g., washing dishes) The value of their own contribution is indistinct ("If I wait long enough, someone else will volunteer to do it.") Their team doesn't feel like a real community ("Why should I wash dishes for my family if they don’t support me in other endeavors?") http://www.fastcompany.com/3054170/know-it-all/the-scientific-reason-why-some-people-are-slackers