Using a stochastic frontier approach this paper evaluates the effects of substantial changes in the teaching material on students learning efficiency. The results indicate that the main effects of the re-organization on the learning efficiency was a decreasing importance of students' attendance...

The request for a strengthening of academic research at the German economic research institutes by the German Science Council more than a decade ago was founded on the crucial insight that sound policy advice the traditional task of the institutes can only be guaranteed in the long term if it is...