1. School of Management, Politecnico di Milano, via Lambruschini 4/B, Milan, Italy
2. Centre for Applied Research in Education (CARE), Amsterdam University of Applied Sciences, Amsterdam, The Netherlands
3. Estonian Business School, Tallinn, Estonia
4. Leuven Economics of Education Research, KU Leuven, Naamsestraat 69, 3000 Leuven, Belgium
5. Comenius University, Faculty of SaES, Institute of Mediamatics, Mlynske luhy 4, 821 05 Bratislava, Slovakia
6. KU Leuven, Naamsestraat 69, 3000 Leuven, Belgium