324 IZA Discussion Papers
IZA Discussion Paper No. 283
published in: Economics Bulletin, 2007, 15(7), 1-8.
IZA Discussion Paper No. 281
published in: Journal of Economic Theory, 2007, 137 (1), 104-126
IZA Discussion Paper No. 273
published in: Economic Journal, 2006, 116 (511), 382-407
IZA Discussion Paper No. 136
published in: Economic Modelling, 2002, 19 (1), 105-120