Prof. Dr. Elżbieta Mączyńska - professor of economic sciences, associated with the Warsaw School of Economics; organizer and head of the Postgraduate Studies in Real Estate Valuation conducted at the Warsaw School of Economics. Member of the Presidium of the "Poland 2000 Plus" Forecasting Committee, Committee of Economic Sciences of the Polish Academy of Sciences. Honorary president of the Polish Economic Society. Specialist in the field of economics, including economic analysis, finance and valuation of enterprises and socio-economic systems. Creator of econometric models of bankruptcy prediction.