Predicting re-employment : machine learning versus assessments by unemployed workers and by their caseworkers / Gerard J. van den Berg (University of Groningen, University Medical Center Groningen, IFAU Uppsala, ZEW, IZA and CEPR), Max Kunaschk (IAB Nuremberg), Julia Lang (IAB Nuremberg), Gesine Stephan (IAB Nuremberg, Friedrich-Alexander-Universität Erlangen-Nürnberg and IZA), Arne Uhlendorff (CNRS, CREST, IAB Nuremberg, DIW and IZA) ; IZA Institute of Labor Economics