@unpublished{publication-6293,
	author={Widmer, Philippe K},
	institution={University of Zurich},
	issn={1664-7041},
	number={No. 53},
	pages=23,
	series={Working paper series / Department of Economics},
	title={Does prospective payment increase hospital (in)efficiency? Evidence from the Swiss hospital sector},
	year=2011,
}