IZA-Publikationen
IZA Discussion Paper No. 1236
published in: L. Mátyás and P. Sevestre (eds.), The Econometrics of Panel Data, Springer 2008 (3rd ed.)
IZA Discussion Paper No. 1196
published in Review of Economic Studies, 2006, 73 (4), 1057-1084
IZA Discussion Paper No. 1108
published in: Econometric Theory, 2005, 21 (1), 212-231
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