English Abstract: Performance reasons in decision making based on business data usually requires a good management of multiple data formats and also processing speed, flexibility, portability, automation, power of suggestion and ease of use. The paper comes with theoretical ideas and practical...

Romanian Abstract: Sistemele liniare sunt utile în analiza situaţiilor în care datele cantitative este necunoscute sau trebuie să fie măsurate şi informaţiile calitative sunt cunoscute; astfel de situaţii apar frecvent în discipline precum economia, biologia, etc. Dezvoltarea de noi...

During the decision process, one has to take into consideration more than one criterion, the alternative that meets as many criteria as possible being chosen eventually. As it is impossible to reach the maximum level that is wished for separately for each criterion at the same time, one has to...

This survey analyzes two types of models: 1. Models based on assumptions of monetary and financial market equilibrium disturbance in line with mainstream thinking to believe that is self-regulating market, the units would have rational expectations, an the crisis would be a temporary phenomenon...