@unpublished{publication-23542,
	author={Beck, Elliot and De Nard, Gianluca and Wolf, Michael},
	institution={University of Zurich},
	issn={1664-7041},
	number=430,
	pages=29,
	series={Working paper series / Department of Economics},
	title={Improved inference in financial factor models},
	year=2023,
}