1. Statec Research a.s.b.l., (National Institute for Statistics and Economic Studies of the Grand Duchy of Luxembourg), Luxembourg Ville, Luxembourg
2. Faculty of Organizational Sciences, Department of Quality Management and Standardization, University of Belgrade, Belgrade, Serbia
3. Department of Technology and Operations Management, Rotterdam School of Management, Erasmus University, Rotterdam, The Netherlands
4. Faculty of Technology, Policy and Management, Department of Values, Technology and Innovation, Delft University of Technology, Delft, The Netherlands