5 IZA Discussion Papers
IZA Discussion Paper No. 2841
IZA Discussion Paper No. 2314
revised version published as 'Duration dependence versus unobserved heterogeneity in treatment effects: Swedish labor market training and the transition rate to employment' in: Journal of Applied Econometrics, 28 2013, 325-351
IZA Discussion Paper No. 1939
published in: Empirical Economics, 2008, 35 (1), 153-178
IZA Discussion Paper No. 1503
IZA Discussion Paper No. 810