1. Department of Investment and Capital Markets, Faculty of Management, Poznan University of Economics and Business, Poznan, Poland
2. Dubai Business School, University of Dubai, Academic City, Dubai, United Arab Emirates
3. Department of Applications of Mathematics in Economics, AGH University of Science and Technology, Krakow, Poland
4. Department of Financial Management, University of Pretoria, Pretoria, South Africa
5. Faculty of Economics, Poznan University of Economics and Business, Poznan, Poland