Paweł Felis is habilitated Doctor of Economic Sciences in the Discipline of Finance, Associate Professor at the Institute of Finance of the SGH Warsaw School of Economics. Leszek Patrzałek is full Professor of Economic Sciences in Economics and Finance. Agnieszka Bem is habilitated Doctor of Economic Sciences in the Discipline of Finance, Associate Professor at the Department of Corporate and Public Finance. Michał Bernardelli is habilitated Doctor, Associate Professor at the SGH Warsaw School of Economics, Deputy Dean of Graduate Studies at SGH Warsaw School of Economics. Elżbieta Malinowska-Misiąg has a PhD in Economics. Works at the Financial System Department of the Warsaw School of Economics. Jarosław Olejniczak is Assistant Professor at the Finance Department at the Wroclaw University of Economics and Business (Poland) and has a PhD in Economics. Milena Kowalska is Assistant at the Department of Corporate and Public Finance at Wroclaw University of Economics and Business.