1. Statistics at the Institute for Employment Research (IAB) is Professor of , Regensburger Str. 104, 90478 Nuremberg, Germany, Ludwig-Maximilian University of Munich, Germany, and University of Mannheim, Germany
2. Department of Statistical Science, Computer Science, Biostatistics and Bioinformatics, the Rhodes information initiative at Duke (iiD) is an Associate Professor at the , and the Social Science Research Institute (SSRI), Duke University, 214 Old Chemistry, Box 90251, Durham, NC 27708-0251, USA and Principal Mathematical Statistician, United States Census Bureau, Suitland, MD, USA