MPIDR Working Paper

Fertility and union histories from German GGS data: some critical reflections

Kreyenfeld, M. R., Hornung, A., Kubisch, K., Jaschinski, I.
MPIDR Working Paper WP-2010-023, 28 pages.
Rostock, Max Planck Institute for Demographic Research (March 2010)
Revised November 2010
Open Access


This paper validates the fertility and union histories of the German Generations and Gender Survey (GGS). One major result from this validation is that the fertility of the older GGS-cohorts is too low, while it is too high for the younger cohorts. For partnership histories, we find a similar bias. In sum, the GGS gives wrong cohort fertility and marriage trends for Germany. We speculate on various sources for this bias in the data. However, we were unable to find a remedy to cure it.

Keywords: Germany, fertility
The Max Planck Institute for Demographic Research (MPIDR) in Rostock is one of the leading demographic research centers in the world. It's part of the Max Planck Society, the internationally renowned German research society.