In this paper the impact and predictive effects of knowledge management on financial performance are analysed. The research also includes an analysis of the moderating effects of two moderators (National Origin and Enterprise Size) and their relationship. The data was gathered by interviewing 520 managers from manufacturing companies operating in Serbia. The most important conclusions of the research are: 1. High levels of knowledge management positively influence business performance, quality and competitiveness. 2. Financial performance is mainly influenced by the dimensions connected to the effects of knowledge management regarding its implementation and protection and the acquisition of competitive advantages. 3. Knowledge management strongly influences the market aspects of business, but also the increase of fixed assets. 4. Knowledge management has a slightly greater impact on financial performance in foreign enterprises (operating in Serbia) compared to domestic (Serbian) enterprises. The situation is similar when comparing medium and large enterprises (a higher impact) with small enterprises (a smaller impact). 5. The greatest effects are achieved when an effective organizational structure is in place, when the organization protects its knowledge, when it manages to materialize the knowledge gathered in the form of the efficient application of knowledge.

The paper presents the results of research into the influence of national culture on the enterprise potential, individual entrepreneurial orientation and entrepreneurial intentions of students in Serbia. The moderating and mediating effects of the possession of finance for opening one’s own company item on the observed relations were examined. National culture has a positive influence on entrepreneurship in cases where young people want to overcome the unfavourable circumstances in society and engage in entrepreneurship in order to become independent. In the case of a poor financial situation a stable environment is what can encourage the launch of one's own business.

This paper analyzes the influence and predictive effects of knowledge management on job satisfaction. The aim of this paper is to develop a model based on the effects of knowledge management on job satisfaction. The data were obtained by interviewing 520 managers of all levels from manufacturing enterprises in Serbia. The results showed that knowledge management has a complex influence on job satisfaction. It negatively affects the dimensions of Salary, Promotion, and Supervision and positively influences the Additional Benefits dimension, while having combined effects on the other dimensions. In a working environment where knowledge management levels are high, employees may perceive their salaries, rewards, and promotion opportunities as inadequate. This is because they feel they deserve more due to their knowledge, ability, engagement, and the enterprise's success. Serbian enterprises are often unable to pay their employees higher salaries. The theoretical importance of the results is precisely in the fact that the individual relations of the observed dimensions are determined and that the desired model is developed. The practical significance of the work is that leaders and managers, based on these relations, can see the possibilities and ways to improve certain aspects of knowledge management and job satisfaction.

The paper presents the results of the study of the influence of the dimensions of organizational culture on individual entrepreneurial orientation dimensions, the achievement dimension and the theory of planned behaviour dimensions. The respondents were employed persons. There were 540 respondents from 72 organizations. The moderating effect of the respondents’ gender on the observed relationships was also examined. From all the dimensions of organizational culture, power distance has the greatest impact on the entrepreneurial intentions of employed persons. Entrepreneurial intentions weaken when there is group collectivism in the organization and when there is an assertive environment in the organization.

The study presents the results of the impact of organizational culture on public relations in business organizations. The data were obtained from a survey of 415 respondents from 93 companies in Serbia. The following statistical methods were used: descriptive statistics, correlation analysis, regression analysis and hierarchical regression analysis. Some of the most important conclusions of the research follow: In most cases, the organizational culture dimensions have a statistically significant and positive influence on the communication models of public relations (CMPR) dimensions and the organization – public relations (OPR) dimensions; A favorable organizational culture (represented through the favorable values of the organizational culture dimensions) has a positive impact on two-way models of communication, especially the symmetrical model, as well as on most of the OPR dimensions. On the other hand, an unfavorable organizational culture encourages one-way communication and the organization’s orientation solely for its own benefit; The Power Distance dimension acts in contrast to the other dimensions of organizational culture: high power distance impedes two-way communication and promotes the utility of the company, all of which causes public distrust and dissatisfaction.