\van den Berg\, G.J., \van der Klaauw\, B. and \van Ours\, J.C. (2004). Punitive sanctions and the transition rate from welfare to work Journal of Labor Economics, 22:211--241.
Plug, E. (2004). Estimating the effect of mother's schooling on children's schooling using a sample of adoptees American Economic Review, 94(1):358--368.
Mastrogiacomo, M., Alessie, R. and Lindeboom, M. (2004). Retirement behaviour of Dutch Elderly households Journal of Applied Econometrics, 19:777--793.
Leuven, E., Oosterbeek, H. and \Van Ophem\, H. (2004). Explaining international differences in male skill wage differentials by differences in demand and supply of skill Economic Journal, 114(495):466--486.