Before revision:  We conduct extensive simulation experiments to analyze the statistical properties of various ( bias-corrected) estimatorsin large and even unbalanced panels. Our simulation results provide new insights that are relevant for the application of bias corrections in empirical work. Overall, we find that analytically bias corrected estimators are clearly preferable, especially for unbalanced panels.
After revision:  We conduct extensive simulation experiments to analyze the statistical properties of various ( bias corrected) estimators. In simulation experiments we find that analytically bias corrected estimators are clearly preferable, especially for unbalanced panels.