The Covid-19 pandemic has brought numerous economic challenges to countries around the world. The specificities of certain economy sectors determined the character and intensity of the impact of this health crisis on their results. The purpose of the paper is to analyse the impact that the Covid-19 pandemic has had on the economic results of agriculture in the European Union countries. Comparative analysis and cluster analysis are used in the research. The general conclusion of the paper is that the Covid-19 pandemic did not change the economic importance and role of agriculture in the individual European Union countries. In addition, the European Union countries differ significantly according to the impact of the Covid-19 pandemic on the contribution of agriculture to gross domestic product, while a significant difference between the countries has not been determined according to the impact of the pandemic on the contribution of agriculture to employment.

The Covid-19 pandemic has brought numerous challenges and limitations globally. Countries around the world are facing the negative socio-economic consequences of the global health crisis. As the tourism sector is one of the most important sectors of the global economy and also one of the sectors hardest hit by the crisis, the consequences of the negative impact of this crisis in tourism are very wide. The subject of this paper is to investigate the impact of the Covid-19 pandemic on the economic effects of tourism in Central, Eastern and Southern European (CESEE) countries. The aim of this paper is to analyse the homogeneity, i.e. heterogeneity of the analysed countries in terms of the negative impacts of the crisis on the economic effects of tourism through the analysis of the reduction of the contribution of tourism to key macroeconomic indicators under the influence of the Covid-19 pandemic. By applying cross-country comparison and cluster analysis, it was concluded that CESEE countries are not homogeneous in this sense, as well as that countries in which the importance of tourism for the national economy is greater are more severely affected by the crisis.

The common and main strategic goal of all Western Balkan States is integration into the European Union. Therefore, the transition of the Western Balkan region, as in the case with other Central European transition countries, must be seen as a part of the European integration process. The aim of this research is to tests whether income convergence exists between Western Balkan States and the developed European Union countries, with a comparison with New Member States. In order to test this assumption, regression analysis is used. The results did not confirm that income convergence existed from 1995 to 2019. However, the results indicate a strong impact of the Global Economic Crisis on income convergence, so it existed in the years before and after the Global Economic Crisis. Results also showed faster growth of the New Member States than the Western Balkan States.

The paper examines the existence of convergence in the achieved levels of human development among countries of the European Union in the period 1995-2018. The aim of the research is to test the hypothesis, There is convergence in the achieved levels of human development among the integrated countries of the European Union. The Human Development Index is used as a measure of human development. Using regression analysis and coefficient of variation, the existence of band s-convergence is tested in this paper. In addition to the entire European Union, convergence is being tested for a group of developed countries of the European Union, as well as among so-called "New Member States". The obtained results indicate the existence of convergence (both b and s) in the achieved levels of human development in the European Union, where it is more pronounced and stable in the group of "New Member States" compared to the group of developed countries of the European Union. The main contribution of this paper is to increase the number of papers in the field of convergence in terms of human development, given that so far, a small number of papers have explored this topic.