@article {3674,
	title = {Inattention and Switching Costs as Sources of Inertia in Medicare Part D},
	journal = {NBER Working Paper Series},
	year = {2016},
	pages = {No. 22765},
	author = {Heiss, Florian and McFadden, Daniel and Winter, Joachim and Wuppermann, Amelie and Zhou, Bo}
}
