1. Institute of Management, WSB University in Poznan, Poznań, Poland
2. Graduate School of Management, University of Plymouth, Plymouth, UK
3. Faculty of Economics and Management, Slovak University of Agriculture, Nitra, Slovak Republic
4. Faculty of Economics, Department of Business Administration and Management, University of West Bohemia, Plzeň, Czech Republic
5. Department of Labour Market, Szent István University, Institute of Social Sciences and Teacher Training, Gödöllő, Hungary