Paris School of Economics, and CNRS, France, and IZA, Germany

RWI, and IZA, Germany

University of Alberta, Canada

University of Ottawa, Canada

OECD, France, and IZA, Germany

United Nations University – Maastricht Economic and Social Research Institute on Innovation and Technology (UNU-MERIT), Netherlands

University of Manchester, UK

University College London, UK, Rodolfo DE Benedetti Foundation, Italy, and IZA, Germany

University College London, UK, and IZA, Germany

University of Warsaw, Poland

Humboldt University Berlin, and IZA, Germany

University of Bristol, UK, and IZA, Germany

Cornell University, USA, and IZA, Germany