5 IZA Discussion Papers
IZA Discussion Paper No. 14862
IZA Discussion Paper No. 6583
IZA Discussion Paper No. 2797
published in: Developing Economies, 2011, 49(1), 36-65
IZA Discussion Paper No. 772
published in: Regional Science and Urban Economics, 2006, 36(2), 227-248
IZA Discussion Paper No. 766