Worker churn and employment growth at the establishment level / Rüdiger Bachmann (University of Notre Dame, CEPR, ifo, CESifo), Christian Bayer (University of Bonn and CEPR), Christian Merkl (University of Erlangen-Nuremberg (FAU) and IZA), Stefan Seth (Institute for Employment Research (IAB)), Heiko Stüber (FAU and IAB), Felix Wellschmied (Universidad Carlos III de Madrid and IZA) ; IZA Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, October 2017