Hans Bloemen and Arie Kapteyn, "The estimation of utility consistent labor supply models by means of simulated scores", Journal of Applied Econometrics, Vol. 23, No. 4, 2008, pp. 395-422. This paper uses confidential data from the Institute for Labour Studies (OSA). The data are from the 1985 survey wave of the OSA Labour Panel. The same data are used in Van Soest, Woittiez, and Kapteyn (1990), see references in the paper. For further information, please contact: Hans Bloemen Free University Amsterdam Department of Economics De Boelelaan 1105 1081HV Amsterdam The Netherlands hbloemen [AT] feweb.vu.nl