Despite the considerable effort and the large financial expenditures spent on measures of Active Labor Market Policy in Germany, relatively little is known about their actual impact. To the contrary, past evaluation efforts typically failed to construct a credible counterfactual situation a...

Since interventions by the public sector generally commit substantial societal resources, the evaluation of effects and costs of policy interventions is imperative. This paper outlines why program evaluation should follow well-respected scientific standards and why it should be performed by...

The assumption that the assignment to treatments is ignorable conditional on attributes plays an important role in the applied statistic and econometric evaluation literature. Another term for it is conditional independence assumption. This paper discusses identification when there are more than...

In seinem Kommentar setzt sich Ferdinand Dudenhöffer, Universität Duisburg-Essen, mit den Elektromobilitätsprojekten der Bundesregierung – den sogenannten »Schaufenstern« für Elektromobilität – auseinander. Deutschland sollte nach dem Regierungsprogramm zum »Leitmarkt für...

In the past few years permit trading has become a popular policy instrument to achieve emissions reductions or other environmental goals at minimal cost. There are already a number of existing regimes on firm as well as on national level in which permits for SO2, NOX and CO2 emissions but also...