The application of DEA in the analysis of the evaluation of the economic dynamics with the efficiency chain and the ranking of DMUs for the evaluation of the overall performance

The efficiency evaluation on a process of annual production trends, in order to improve and optimize the performance of DMUs is the aim of this study. The aim of highlighting the impact of supporting resources (financial and non-financial comparative) is for this process to be as profitable as possible as an instrument to examine it as widely as possible. The application of the DEA method is based on a selection of variable factors (input-output) adapted to the practical rule of the number of DMUs with the number of variables. The selection of variable factors is also based on the correlation coefficients. This was used in the construction of the corresponding models of the connection between inputs and outputs. In the study, ten criteria of variable factors selected for the evaluation of relative technical efficiency are applied. The ranking is done according to each model using the values of the "distributive" function determined by the formula (after the super efficiencies are also evaluated before). This is an alternative to the one based on the average of the efficiency values. The study is extended to the period 2012-2022 for the countries of the European region (19 countries with Cluster division).