“…As the variety and deepness of the methods for the analyses stimulate the differences in the received results. Mostly the variation is in the data source: open statistical sources (Haussen & Schlegel, 2019;Rocha & Van Praag, 2020) or personally conducted survey (Gupta et al, 2014;Jüttler& Schumann, 2019) or usage of surveys received from the known agencies (Huertas et al, 2017;Vieito, 2012) or global organizations (Bardasi et al, 2011), like UN (Brixiová et al, 2020). As to the methods, authors mostly declare the suitability of such list of methods to support sufficient and reliable results and conclusions: autoregressive model and granger-causality (Haussen& Schlegel, 2019); econometric decomposition methods and panel data techniques (Huertas et al, 2017); multivariate statistical analysis (Gupta et al, 2014;Bardasi et al, 2011) and descriptive statistical analysis (Vieito, 2012;Rocha & Van Praag, 2020;Jüttler & Schumann, 2019), OLS regression along with quantile regression (Brixiová et al, 2020).…”