@unpublished{publication-3630,
	author={Pfeifer, Christian and Janssen, Simon and Yang, Philip and Backes-Gellner, Uschi},
	institution={University of Zurich},
	number=5671,
	pages=29,
	series={IZA Discussion Papers},
	title={Effects of training on employee suggestions and promotions in an internal labor market},
	year=2011,
}