4 IZA Discussion Papers
IZA Discussion Paper No. 12618
IZA Discussion Paper No. 10362
IZA Discussion Paper No. 8092
published in: Barry R. Chiswick and Paul W. Miller (eds.), Handbook on the Economics of International Immigration, 1A, Elsevier, 2015
IZA Discussion Paper No. 3485
published in: International Economic Review, 2010, 51(4), 893-923