Boban Stojanović

Measuring the Level of Competition on the Serbian Mobile Telecommunications Market

Abstract The starting hypothesis is that the market structure to a large extent determines the conduct and the level of the achieved performance of economic entities. The aim of this paper is to determine the theoretical and empirical correlation between market structure, conduct, and performance of economic entities. The paper provides an analytical overview of the mobile telecommunications market in the Republic of Serbia. By using different indicators (the Concentration ratio, the HHI, the Lorenz curve, and the Gini coefficient), the supply concentration in this market is measured and the nature of competition is analysed. By using statistical methods (correlation and simple linear regression analysis), the correlation between the variables, which confirmed the existence of a strong positive correlation between the degree of supply concentration on the market and the level of achieved performance is examined.

The limitations of competition in the insurance markets of Slovenia, Croatia and Serbia

Abstract The article analyses the situation in the insurance markets of Slovenia, Croatia, and Serbia in order to provide the insight into the limitation of competition. The study of the limitation of competition was conducted using the theoretically founded indicators of concentration and inequality as follows: Concentration ratio, Herfindahl-Hirschman index, Lorenz curve, Gini coefficient, and Entropy index. The indicators were calculated for all the countries between 2004 and 2011. By comparatively analysing the obtained values of the indicators of concentration and inequality, we came to the conclusion that all three markets are characterised by a similar movement of the indicator, as well as that Croatian market, despite the relatively uneven market share distribution between individual companies, is more competitive than the other two.

Sectoral State Aid in the European Union and the Western Balkan Countries

Abstract State aid aimed to certain market participants, especially some of its categories, carries a risk of distortion of competition. Therefore, it is necessary to control allocation of state aid and its direction from the sectoral objectives towards more justified horizontal objectives of allocating. This paper examines the practice of assigning sectoral state aid in the European Union and in the selected Western Balkan countries by using the methods of comparative and correlation analysis. The aim is to identify deviations and point out to the preferred ways of state aid allocation.