130 IZA Discussion Papers
IZA Discussion Paper No. 3749
revised version publishd in: Economics of Education Review, 2012, 31 (4), 363-375
IZA Discussion Paper No. 3631
published in: Journal of Economic Behavior and Organization, 2009, 72 (2), 750-765
IZA Discussion Paper No. 3474
published in: Scandinavian Journal of Economics, 2008, 110 (4), 663-693
IZA Discussion Paper No. 2963
revised version published as "Class-Size Caps, Sorting, and the Regression Discontinuity Design" in: American Economic Review, 2009, 99 (1), 179–215
IZA Discussion Paper No. 2949
published in: Quarterly Journal of Economics, 2008, 123 (2), 747-793
IZA Discussion Paper No. 2909
published in: Review of Economic Studies, 2013, 80 (3), 1055-1085
IZA Discussion Paper No. 2904
published in: Elementary School Journal, 2008, 108 (3), 1-17
IZA Discussion Paper No. 2642
IZA Discussion Paper No. 2490
IZA Discussion Paper No. 2425
published in: Social Science and Medicine, 2009, 69 (9), 1360–1367
IZA Discussion Paper No. 2332
published in: Econometrica, 2009, 77(3), 975-991
IZA Discussion Paper No. 2329
published in: Journal of Economic and Social Measurement, 2007, 32 (2-3), 65-92
IZA Discussion Paper No. 1979
IZA Discussion Paper No. 1747
IZA Discussion Paper No. 1747
IZA Discussion Paper No. 1631
IZA Discussion Paper No. 1605
IZA Discussion Paper No. 1339
published in: Economic Journal, 2005, 115 (502), C118-C132
IZA Discussion Paper No. 1289
IZA Discussion Paper No. 1236
published in: L. Mátyás and P. Sevestre (eds.), The Econometrics of Panel Data, Springer 2008 (3rd ed.)