“…Econometric modelling, asset-liability modelling, simulation, and similar modelling methodologies are implemented when it is needed to describe relations between relevant variables, forecasting not only pension fund's financial and monetary value in the future but also macroeconomic variables, social factors, demographic tendencies, political stability, globalisation, and external vulnerability as well (Heer & Irmen, 2014;Mielczarek, 2013;Thomas, Spataro, & Mathew, 2014). For the estimation of pension systems performance, the comparative study can be carried out in order to draw conclusions on a regional level and provide a basis for further analysis of certain countries situations.…”