3 IZA Discussion Papers
IZA Discussion Paper No. 11906
published in: Christiane Timmerman, Noel Clycq, François Levrau, Lore Van Praag, and Dirk Vanheule (eds.), Migration and Integration in Flanders: Multidisciplinary PerspectivesLeuven University Press, 2018, 245–272
IZA Discussion Paper No. 10730
revised version published as 'The impact of sanctions for young welfare recipients on transitions to work and wages and on dropping out" in: Economica, 2022, 89 (535), 1-28
IZA Discussion Paper No. 4754
substantially revised version published as 'Longer-Term Impacts of Mentoring, Educational Services, and Learning Incentives: Evidence from a Randomized Trial in the United States' in: American Economic Journal: Applied Economics, 2012, 4 (4), 121-139