224 IZA Discussion Papers
IZA Discussion Paper No. 273
published in: Economic Journal, 2006, 116 (511), 382-407
IZA Discussion Paper No. 255
IZA Discussion Paper No. 254
IZA Discussion Paper No. 196
revised version published as' Complementarity and Custom in Wage Contract Violation' in: Review of Economicss and Statistics, 2009, 91 (4), 832 - 849
Typ