5 IZA Discussion Papers
IZA Discussion Paper No. 8686
IZA Discussion Paper No. 7867
published in: Social Inclusion, 2017, 5 (2), 39 - 58
IZA Discussion Paper No. 6226
revised version published in: Journal of Law and Economics, 2014, 57 (2), 349-386
IZA Discussion Paper No. 5559
revised version published as 'Determinants of Anti-Trafficking Policies: Evidence from a New Index' in: Scandinavian Journal of Economics, 2014, 116 (2), 429-454
IZA Discussion Paper No. 5142
published in: Gil S. Epstein and Ira N. Gang (eds.), Migration and Culture, Frontiers of Economics and Globalization, Vol. 8, Emerald Publishing: 2010