7 IZA Discussion Papers
IZA Discussion Paper No. 15783
IZA Discussion Paper No. 14380
IZA Discussion Paper No. 14262
IZA Discussion Paper No. 11882
IZA Discussion Paper No. 11381
IZA Discussion Paper No. 8449
revised version published in: Southern Economic Journal, 2016, 83 (2), 501-526
IZA Discussion Paper No. 8023
published in: Contemporary Economic Policy, 2015, 33 (4), 619-635.