Możliwości zastosowania modelowania dwupoziomowego w badaniach ekonomicznych
The Possibility of Two-Level Modeling Used in Economic Studies

Summary/Abstract: The main objective of this paper is to demonstrate the usefulness of two-level modeling methodology for estimating the socio-economic variables. In the first part of the paper one will present the model construction stages taking the two-level structure of population and variables into account. In the second part an example of using the above methodology for estimating the number of working people in crosssection of counties is presented. Province were chosen as second-level unit.With the two-level modeling methodology one can include variation of the level of the considered variable and the strength of its dependencies with explanatory variables between the groups. Furthermore, additional information has been obtained by using the explanatory variables from the second level – concerning the entire group.In the second part, as the explanatory variables, among others, the results of unique study in the Statistical Office in Poznan which concerned the flow of employees were used. The main source of information of this study are the fiscal records of the Ministry of Finance. These data concern the year 2006 and this has been the first information for commuting since 1988 provided by the Central Statistical Office.The comparison of the quality of estimates obtained using two-level approach and the classical linear regression were conducted. The results show the advantage of two-level model.

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