4 IZA Discussion Papers
IZA Discussion Paper No. 16140
IZA Discussion Paper No. 3129
IZA Discussion Paper No. 1189
published in: Review of Economic Studies, 2009, 76 (2), 731-759
IZA Discussion Paper No. 1110
revised version published as 'Rising Occupational and Industry Mobility in the United States, 1968 - 97' in: International Economic Review, 2008, 49 (1), 41-79