Jan Szczygielski 1, 2, Ailie Charteris 3, Princess Bwanya 4, Janusz Brzeszczyński 4, 5,
1 Department of Finance, Kozminski University, ul. Jagiellońska 57/59, 03-301 Warsaw, Poland, 2 Department of Financial Management, University of Pretoria, Private Bag x20, Hatfield, Pretoria, 0028, South Africa, 3 Department of Finance and Tax, University of Cape Town, Rondebosch, 7700, Cape Town, South Africa, 4 Department of Accounting and Financial Management, Newcastle Business School (NBS), Northumbria University, Newcastle upon Tyne, NE1 8ST, United Kingdom, 5 Department of Capital Market and Investments, Faculty of Economics and Sociology, University of Łódź, ul. POW 3/5, 90-225 Łódź, Poland