@unpublished{publication-5586,
	author={Hagedorn, Marcus and Kaul, Ashok and Mennel, Tim},
	institution={University of Zurich},
	issn={1424-0459},
	number={No. 237},
	series={Working paper series / Institute for Empirical Research in Economics},
	title={An Adverse Selection Model of Optimal Unemployment},
	year=2005,
}