450 IZA Discussion Papers
IZA Discussion Paper No. 61
published in: K.F. Zimmermann (ed.), European Migration - What Do We Know? Oxford University Press, 2005
IZA Discussion Paper No. 59
published in: : K.F. Zimmermann (ed.), European Migration - What Do We Know? Oxford University Press, 2005
IZA Discussion Paper No. 50
published in: Jahrbuch für Wirtschaftsgeschichte / Economic History Yearbook, 2000, 1, 225-237
IZA Discussion Paper No. 49
published in: Scandinavian Journal of Economics, 2002, 104 (4), 641-656
IZA Discussion Paper No. 41
published in: Swedish Economic Policy Review, 1998, 5(2), 303-343
IZA Discussion Paper No. 30
published in: Journal of Comparative Economics, 1999, 27 (1), 61-89
IZA Discussion Paper No. 25
published in: New Zealand Economic Papers, 2000, 34 (2), 53-72
IZA Discussion Paper No. 15
published in: Applied Economics Quarterly, 2004, 50 (4), 329–362
IZA Discussion Paper No. 8
published in: Staatswissenschaften und Staatspraxis, 1998, 9 (2), 191-208
IZA Discussion Paper No. 7
published in: Boesler, Klaus-Achim/ Heinritz, Günter/ Wiessner, Reinhard (Hrsg.), Europa zwischen Integration und Regionalismus, Franz Steiner Verlag, Stuttgart, 1998, 56-66