Ocena efektywności decyzji gospodarczych w warunkach ryzyka z wykorzystaniem rozmytej metody TOPSIS

The paper investigates the possibility of applying the fuzzy TOPSIS method in economic decision making in the absence of precise estimation of risk parameters, partial information, and uncertain or imprecise data. The authors describe the concept of risk in economic decision making and review the methods of risk analysis. Presented are the theoretical foundations of fuzzy TOPSIS, particular calculation stages, and the application for efficiency evaluation of investment projects under conditions of risk. The numerical example uses NPV, IRR and PP indicators, and a linguistic variable describing risk. What makes this procedure valuable is the calculation simplicity as well as the easiness and clarity of interpretation of obtained results.