3 IZA Discussion Papers
IZA Discussion Paper No. 6775
published in: International Economics and Economic Policy, 2015, 12 (3), 375-392
IZA Discussion Paper No. 1798
published in: International Finance, 2006, 9 (3), 317-342
IZA Discussion Paper No. 448
published in: Review of Economics and Statistics, 2002, 84 (2), 324-341