4 IZA Discussion Papers
IZA Discussion Paper No. 3302
published in: Econometrica, 2014, 82 (2), 705-730
IZA Discussion Paper No. 1997
published in: Journal of Business and Economic Statistics, 2014, 32 (2), 245-258
IZA Discussion Paper No. 1466
published in: International Journal of Industrial Organization, 2004, 22(10), 1381-1398
IZA Discussion Paper No. 143