The combined effect of ICT improvement, digitalization and change in clients' habits lead to changes in the financial sector worldwide. Increased use of digital financial services (DFS) is a change that might help to increase financial inclusion, which is particularly important for developing countries. As income is considered a critical driver of digital payments, this study aims to determine whether there is a linear relationship between a country's income measured by the level of Gross National Income per capita (GNI p.c.) and the use of digital payment services, i.e., making and receiving digital payments. We used data from the Global Findex and World Bank databases for 2017 to conduct the research, which covered 141 countries. The presence of a linear relationship between the level of GNI p.c. and the use of digital payments was tested using correlation analysis. The results of the correlation analysis show that there is a significant strong positive linear relationship between the level of GNI p.c. and the use of digital payment services in both segments, i.e., making and receiving payments. Findings are consistent with previous research and confirmed the important role of income as a driver of the use of DFS.

This paper aims to examine Serbian female entrepreneurs' performance related to digital competences based on real-life scenario questions. The research was conducted on a sample of 114 female entrepreneurs. The method used for collecting data was an online survey (Google form). The survey questions were based on Digital Competence Framework (DigComp) focusing on the first two areas, "Information and data literacy" and "Communication and collaboration". The results showed that the female entrepreneurs in Serbia achieved better performance (i.e., answered the questions correctly) in the area "Information and data literacy" especially in the segment "Browsing, searching, and filtering data, information and digital content". On the other side, lower performance of Serbian female entrepreneurs was achieved in the area "Communication and collaboration", where nine questions from thirteen were not answered correctly. Segments "Engaging in citizenship through digital technologies", "Collaborating through digital technologies" and "Netiquette" were identified as the most problematic because there was no correct answer. The authors can conclude that skills incorporated in the segments of the second area need to be improved and boosted to be in line with market demands.

The aim of this paper is to present the changes that have occurred in the banking sector of Serbia after the beginning of its transformation, with special emphasis to the last decade of development. Twenty years after the beginning of the transformation, the fundamental features of the system are consolidation, foreign ownership, increases of all banking aggregates measured by absolute values, primarily assets, capital, deposits and loans. Also, a trend of growth in profitability, liquidity and capital adequacy of the sector was recorded. Along with the decrease in the number of banks, the ownership structure changed to predominantly foreign capital, but the degree of concentration did not change drastically. However, the share of the first 5 banks in total assets was constantly above 50%, which indicates the fact that the banking sector of Serbia is extremely fragmented, because there is a significant number of banks with a market share below 2%.

The emergence of the COVID19 pandemic has changed the way the world and business function, where the physical environment is shifting to a remote (online) environment. The fact emphasizes the importance of information technology (ICT) and its tools. The demand for ICT derivatives leads to the dispersion of the necessary competences for their use. The importance of this paper is reflected in the fact that the authors determine the level of women entrepreneurs' knowledge (based on two Digital Competences framework areas) and identify which competences should be improved to be in line with market requirements. The research was conducted on a sample of 114 women entrepreneurs from February-March 2021. Based on the analysis, the authors identified the enormous gap in the second area of "Communication and Collaboration", which concerns the interaction with third parties through digital technologies.

This paper aims to determine which of the two sample plans, i.e., a simple random sample without replacement, or a stratified sample, gives a more accurate estimate of the feature's mean. The feature that was the subject of this research is the human development index in 2018. The analysis included 189 countries globally, classified into specific categories according to the United Nations development classification. The research results showed that a more accurate estimate of the mean of the human development index was obtained by applying a stratified sampling since the mean of the human development index is close to the population mean. Also, the variance of the sample mean is lower than the value obtained by applying a simple random sampling without replacement. Therefore, it was justified to approach stratification, which indicates that in the case of conducting research, the use of a stratified sampling should be considered since it provides a more precise estimate of the mean.