@unpublished{publication-23234,
	author={Nguyen, Phuong Anh and Wolf, Michael},
	institution={University of Zurich},
	issn={1664-7041},
	number=425,
	pages=18,
	series={Working paper series / Department of Economics},
	title={Single-firm inference in event studies via the permutation test},
	year=2023,
}