Dynamic development of the financial system has an increasing impact on the state and development of both national economies and the world economy. This problem is especially acute in developing countries and is predetermined by their economic, social and political development. It also requires constant evaluation and control over the level of their economic development in terms of financialization. Within the framework of the European Neighborhood Policy, the EU cooperates with the countries of the region to deepen and strengthen the relations and helps to increase the stability and sustainability of its Eastern neighbors. Ukraine, Moldova, and Georgia today are currently Associated Eastern Partnership members. Using the panel data for these countries over the period of 2007-2017, the relationship between economic growth and indicators of financialization of the economies was determined. To this end, a fixed-effect regression model, the statistical adequacy of which was confirmed by many indicators (significance levels, Rsquared coefficients, the Breusch-Pagan test), is also used. It was determined that employment, exports of goods and services, added value created in the industrial sector, the ratio of bank capital and reserves to total assets, the share of М1 monetary aggregate in GDP, deposit rate, and Gini index had a positive influence on economic growth of the countries in question.