2 IZA Discussion Papers
IZA Discussion Paper No. 4976
published in: Entrepreneurship and Regional Development, 2012, 24 (5-6), 405-423
IZA Discussion Paper No. 1429
published as "The wage effects of training in Portugal: differences across skill groups, genders, sectors and training types" in: Applied Economics, 2007, 39 (6), 787-807