On the Origin and Composition of the German East-West Population Gap
Journal: RePEc: Research Papers in Economics
Year: 2019

The East-West gap in the German population is believed to originate from migrants escaping the socialist regime in the German Democratic Republic (GDR). We use newly collected regional data and the combination of a regression discontinuity design in space with a difference-in-differences approach to document that the largest part of this gap is due to a massive internal migration wave 3 years prior to the establishment of the GDR. The timing and spatial pattern of this migration movement suggest