Princeton University, University of Oxford - Department of Economics, Stanford University, Northwestern University, London School of Economics & Political Science (LSE) - Centre for Economic Performance (CEP), University of California, Davis, Princeton University, Uppsala University, Yale University, IFAU - Institute for Labour Market Policy Evaluation, University of Quebec at Montreal (UQAM) - Department of Economics, affiliation not provided to SSRN, Erasmus University Rotterdam (EUR) - Erasmus School of Economics (ESE), CESifo (Center for Economic Studies and Ifo Institute) - Ifo Institute, Paris School of Economics, Gesundheit Österreich GmbH (GÖG), Public Policy Group, University of Cambridge, The Australian National University, CNRS, University College London, ETH Zürich - KOF Swiss Economic Institute, Bank of England, Ludwig Maximilian University of Munich (LMU) - Faculty of Economics, Paris School of Economics (PSE), Institute for Evaluation of Labour Market and Education Policy (IFAU), NHH Norwegian School of Economics - Department of Economics, The Hebrew University of Jerusalem, ETH Zürich - KOF Swiss Economic Institute, London School of Economics, Opportunity Insights, Charles III University of Madrid, Princeton University, University of Amsterdam - Faculty of Economics and Business (FEB), Austrian Institute of Economic Research (WIFO)Vienna University of Economics and Business, Duke University - Stanford School of Public Policy, Duke University and Centre for Monetary and Financial Studies (CEMFI)