6 IZA Discussion Papers
IZA Discussion Paper No. 15455
IZA Discussion Paper No. 9946
IZA Discussion Paper No. 8444
published in: Journal of Public Economics, 2015, 123, 42-54
IZA Discussion Paper No. 5501
published in: Journal of Economic Behavior & Organization, 2014, 97, 72-83
IZA Discussion Paper No. 3096
published in: Review of Economics and Statistics, February 2009, 91(1), 188–200
IZA Discussion Paper No. 2106
published in: Journal of Economic Behavior and Organization, 2009, 71(2), 221-232