Jelena Živković deals with the theoretical and empirical evaluation of the country’s national competitiveness factors and the importance of improving national competitiveness as a determinant of economic growth and development (macro competitiveness). Also, the research aims to examine the export competitiveness of industry, as an essential prerequisite for efficient foreign trade relations, by calculating the export competitiveness indices. In addition, Jelena Živković’s research field is also the field of industrial organization. Primarily, it is the analysis of market structures, oligopolies and competition policy. Examining the type of market structure is performed by examining the market concentration level by calculating the market concentration index. The research aims to identify the impact that imperfect market structures have on the export competitiveness of industries.