4 IZA Discussion Papers
IZA Discussion Paper No. 9530
published in: Journal of Policy Analysis and Management, 37(1): 10-37, Winter 2018.
IZA Discussion Paper No. 8390
IZA Discussion Paper No. 6240
published in: Journal of Policy Analysis and Management, 32(2): 224-245, Spring 2013.
IZA Discussion Paper No. 3244
published in: Journal of Policy Analysis and Management, 2009, 28(1), 29-54