43 IZA Discussion Papers
IZA Discussion Paper No. 737
published in: Industrial and Labor Relations Review, 2003, 57 (1), 68-91
IZA Discussion Paper No. 352
published in: Southern Economic Journal, 2003, 69 (4), 822-841
IZA Discussion Paper No. 176
published in: Schmollers Jahrbuch: Zeitschrift für Wirtschafts- und Sozialwissenschaften /Journal of Applied Social Science Studies, 2001, 121(3), 285-312