Associate Professor
Ekonomisk Debatt 2006,årg. 34, nr. 4, s. 63-77
Empirical Economics 2009, vol. 37, no. 2, pp.411-434
International Journal of Manpower, vol. 28, iss. 8, pp. 694-714
Labour Economics, vol. 13, iss. 2, pp. 259-290
Journal of Public Economics, vol. 90, no. 4-5, pp. 775-798