3 IZA Discussion Papers
IZA Discussion Paper No. 9872
published in: European Journal of Political Economy, 2018, 55, 491-510
IZA Discussion Paper No. 9859
published in: Journal of Public Economics, 2016, 137, 14–27
IZA Discussion Paper No. 7495
published in: Journal of Behavioral and Experimental Economics, 2015, 58, 111-123.