          STELIAN STANCU Department of Economic Informatics and Cybernetics Academy of Economic Studies, Bucharest Dumitru Secăreanu, nr.5, ROMANIA stelian_stancu@yahoo.com http://www.ase.ro BO+COIANU MIRCEA Department of Military Sciences and Management “Henry Coandă” Air Force Academy, Bra1ov Mihai Viteazul, nr.160, ROMANIA mircea_boscoianu@yahoo.co.uk http://www.afahc.ro/ ALEXANDRA MARIA CONSTANTIN Academy of Economic Studies, Bucharest Boulevard Unirii, nr. 75, ROMANIA constantin_alexandra_maria@yahoo.com http://www.ase.ro Abstract: In the present data mining techniques are the most utilized methods of calculus in discovering existent relations between different components, objects, phenomenon, etc. Economic analysis must be achieved by the most advanced methods of calculus, so that eventually, thanks to their evolution, they can generate much more viable data by minimizing information loss in order to better reflect reality. Romania, as an EU country, is in direct competition with other European countries, classifying in the category of countries heavily dependent on external commerce, and so, by economic relations with other countries. At the same time, its EU membership grants Romania the possibility to develop and implement strategies with regards to economic performance development, in order to better utilize external production factors. In this context, this paper will try to complete a macroeconomic analysis of relations between European GDP, Romanian GDP, EU population, Romania's population, Romania's imports from the EU and its exports to the EU using data mining techniques. Keywords: data mining, main component analysis, cluster analysis, discriminant analysis, GDP, interest rate, entropy, Bayesian classification, SAS, EU.   Considering export and GDP are classified as main macroeconomic indicators by which rational economy functions by, a study of their interactions is wholly necessary, but also between them and other economic parameters, such as interest rate and exchange rates. There are numerous opinions considering causality, both ways, between export and GDP. The first hypothesis claims that export leads to growth, while other hypotheses, just as interesting, consider that increased production determines increased exports. As for the first hypothesis, Makki and Somwaru 1 claim that increasing exports is a productivity growth factor, thanks to earnings gained by raising scale income and the existence of a larger external market. On the other hand, increasing exports relax constraints created by the exchange rate, which results in an important capital/intermediate entries from intensive technologies. Thanks to export growth, efficiency is increased, as exporters are able to compete on foreign markets, 1 Makki S.S., Somwaru A., Impact of foreign direct investment and trade on economic growth: Evidence from developing countries, American Journal of Agriculture Economics, 86, No. 3, 2004, pag. 795G801. Latest Advances in Information Science, Circuits and Systems ISBN: 978-1-61804-099-2 116