Professor Joseph Sakshaug is Distinguished Researcher, Head of the Data Collection and Data Integration Unit, and Acting Head of the Statistical Methods Research Department at the Institute for Employment Research, Nuremberg, Germany. He is also University Professor of Statistics in the Department of Statistics at the Ludwig Maximilian University of Munich, and Honorary Full Professor in the School of Social Sciences at the University of Mannheim. Previously, he was Senior Lecturer in Social Statistics at the University of Manchester (UK) and Assistant Professor of Statistics and Social Science Methodology at the University of Mannheim. He received his MS and PhD in Survey Methodology from the University of Michigan-Ann Arbor and BA in Mathematics from the University of Washington-Seattle. From 2011-2013 he was Alexander von Humboldt Postdoctoral Research Fellow at the Institute for Employment Research and the Ludwig Maximilian University of Munich. He is also a faculty member in the International Program in Survey and Data Science and Adjunct Research Assistant Professor in the Survey Research Center at the Institute for Social Research at the University of Michigan. His research focuses on data quality issues in complex surveys, the integration of multiple data sources, and empirical research methods.