Das Forschungsprojekt „Impulse für Wirtschaftswachstum und Beschäftigung durch Orientierung vonUnternehmen und Wirtschaftspolitik am Konzept Design für Alle“ wurde gemeinsam vom InternationalenDesign Zentrum Berlin (IDZ) und dem SIBIS Institut für Sozialforschung und...

This paper assesses the dynamics of treatment effects arising from variation in the durationof training. We use German administrative data that have the extraordinary feature that theamount of treatment varies continuously from 10 days to 395 days (i.e. 13 months). Thisfeature allows us to...

Any serious empirical study of factor substitutability has to allow the data to display complementarity as well as substitutability. The standard approach reflecting this idea is a translog specification – this is also the approach used by numerous studies analyzing the relative capital-skill...

This paper outlines why program evaluation should follow well-respected scientific standards and why it should be performed by independent researchers.

The question of whether two drugs - namely alcohol and tobacco - are used as complements or substitutes is of crucial interest if side-effects of anti-smoking policies are considered. Numerous papers have empirically addressed this issue by estimating demand systems for alcohol and tobacco and...