5 IZA Discussion Papers
IZA Discussion Paper No. 12478
forthcoming in: Journal of Human Resources
IZA Discussion Paper No. 10302
published in: Solomon W. Polachek, Konstantinos Pouliakas. Giovanni Russo, Konstantinos Tatsiramos (eds.): Skill Mismatch in Labor Markets (Research in Labor Economics, 45) Emerald Publishing Limited, 2017, 345 - 407
IZA Discussion Paper No. 10199
published in: World Development, 2019, 114, 314-325
IZA Discussion Paper No. 8141
revised version published as 'Do Internships Pay Off? The Effects of Student Internships on Earnings' (joint with Shushanik Margaryan and Mathias Schumann) in: Journal of Human Resources, published online before print May 12, 2020
IZA Discussion Paper No. 7750
published in: J. Heckman, J.E. Humphries, and T. Kautz (eds.), The Myth of Achievement Tests: The GED and the Role of Character in American Life, Chicago: University of Chicago Press, 2014