50.587 IZA Discussion Papers
IZA Discussion Paper No. 554
IZA Discussion Paper No. 553
published in: Economics Letters; 2003, 79 (3), 393-400
IZA Discussion Paper No. 553
published in: Economics Letters; 2003, 79 (3), 393-400
IZA Discussion Paper No. 552
substantially revised and rewritten version available as IZA DP No. 1660
IZA Discussion Paper No. 552
substantially revised and rewritten version available as IZA DP No. 1660
IZA Discussion Paper No. 551
published in: Research in Labor Economics, 2007, 26, 199-229
IZA Discussion Paper No. 551
published in: Research in Labor Economics, 2007, 26, 199-229
IZA Discussion Paper No. 551
published in: Research in Labor Economics, 2007, 26, 199-229
IZA Discussion Paper No. 550
IZA Discussion Paper No. 550
IZA Discussion Paper No. 550
IZA Discussion Paper No. 550
IZA Discussion Paper No. 549
revised version published in: American Economic Review, 2006, 96 (3), 811-831
IZA Discussion Paper No. 549
revised version published in: American Economic Review, 2006, 96 (3), 811-831
IZA Discussion Paper No. 548
published in: Econometric Reviews, 2004, 23 (2), 167-174
IZA Discussion Paper No. 547
IZA Discussion Paper No. 547
IZA Discussion Paper No. 547
IZA Discussion Paper No. 547
IZA Discussion Paper No. 547