Kaltenborn, Bruno; Koch, Susanne; Kress, Ulrike; … - In: Mitteilungen aus der Arbeitsmarkt- und Berufsforschung 36 (2003) 4, pp. 672-688
is intensively discussed in the political arena. Various reform concepts suggested by members of politics and … the past years. To evaluate the different reform approaches, the causal relationship between social security contributions …