Based on new, exceptionally informative and large German linked employer-employee administrative data, we investigate the question whether the omission of important control variables in matching estimation leads to biased impact estimates of typical active labour market programs for the...

Using exceptionally rich linked administrative and survey information on German welfare recipients we investigate the health effects of transitions from welfare to employment and of assignments to welfare-to-work programmes. Applying semi-parametric propensity score matching estimators we find...

We analyze potential effects of demographic change and political constellations on higher education spending. In our panel analysis of west German states (Laender) for the period 1985 to 2002 we find empirical evidence for the hypothesis of a negative relationship between demographic aging and...