@unpublished{publication-19285,
	author={Isphording, Ingo E and Z{\"o}litz, Ulf},
	institution={University of Zurich},
	issn={1664-705X},
	number=342,
	pages=57,
	series={Working paper series / Department of Economics},
	title={The value of a peer},
	year=2020,
}