“…While changes in the incidence and lengths of poverty spells over time have been analyzed for the U.K. (Jenkins and Rigg, ; Jenkins, ) and U.S. (Stevens, ; Card and Blank, ), no similar studies have been performed for Germany. Regarding the duration of poverty itself, the few works available in the field (Headey et al ., ; Krause, ; Biewen, ; Moll, ; Fertig and Tamm, ) cover the period prior to 2004, that is before the introduction of the most important social policy reforms. The evidence about what happened afterwards is limited and mainly based on descriptive analysis .…”