184 IZA Discussion Papers
IZA Discussion Paper No. 491
published in: Defence and Peace Economics, 2003, 14 (3), 175-192
IZA Discussion Paper No. 324
published in: Journal of Economic Integration, 2004, 19 (1), 79-112
IZA Discussion Paper No. 281
published in: Journal of Economic Theory, 2007, 137 (1), 104-126
IZA Discussion Paper No. 241