Panel or grouped data are often used to allow for unobserved individual heterogeneity in econometric models via fixed … effects. In this paper, we discuss identification of a panel data model in which the unobserved heterogeneity both enters … additively and interacts with treatment variables. We present identification and estimation methods for parameters of interest in …

measure how these estimates vary by country, over time, and by estimation method. We find evidence reporting (or file drawer …') bias in the estimates and, after due account is taken of this bias, we find that differences due to estimation method are …

addressed much more directly given the recent availability of panel data featuring repeated observation over extended periods of …

quantiles rose relative to that of workers in lower quantiles. An identical phenomenon is observed among men in West Germany in … determinants of satisfaction are presented and examined using both cross-section data on these cohorts and panel data from the NLSY …

the range of 10 to 15 percent. We find no return to compulsory schooling in Germany in terms of higher wages. We … investigate whether this is due to labor market institutions or the existence of the apprenticeship training system in Germany … most relevant for the labor market are learned earlier in Germany than in other countries …

Using data from the German Socio Economic Panel, I describe the incidence, attributes, and outcomes of continuous … training received by workers in Germany between 1986 and 1989. Further training is primarily a white collar phenomenon, is …