@article {4389,
	title = {Not Working at Work: Loafing, Unemployment and Labor Productivity},
	journal = {NBER Working Paper},
	year = {2016},
	pages = {No. 21923},
	url = {http://www.nber.org/papers/w21923},
	author = {Burda, Michael and Genadek, Katie R. and Hamermesh, Daniel S.}
}
