Ludger Woessmann is Professor of Economics at the University of Munich and Head of the Department Human Capital and Innovation at the Ifo Institute. He received his PhD from the University of Kiel and worked at the Kiel Institute for World Economics. He held a 2010 National Fellowship at the Hoover Institution at Stanford University and spent extended research visits at Harvard University and the National Bureau of Economic Research. His main research interests are in the economics of education, growth, and history, with a special focus on efficiency and equity of education systems, economic consequences of education, and microeconometric analyses of international student achievement tests (PISA, TIMSS, PIRLS, IALS). His about 200 academic publications include many articles in leading international journals like the Quarterly Journal of Economics and the Journal of Economic Literature and are regularly covered by the national and international media. Woessmann is co-editor of the recent volumes of the Handbook of the Economics of Education (North-Holland). He served on the Questionnaire Expert Group for PISA cycles 2009 and 2015 and co-authored (with Eric A. Hanushek, Stanford University) the 2010 OECD report The High Cost of Low Educational Performance: The Long-Run Economic Impact of Improving PISA Outcomes. He is Fellow of the International Academy of Education and coordinates the EU-funded European Expert Network on the Economics of Education (EENEE), a forum to promote and disseminate research on the Economics of Education in Europe.