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This paper will analyze the mediating influence of educational level on job related characteristics-job satisfaction relationship. The main research questions are whether the level of education influences job satisfaction. In order to answer this question, MANOVA was applied using the data obtained by the primary research on a sample of 813 employees in the companies in Serbia. Results of the study showed that job satisfaction is rising with increasing the level of education, except in case of highest level of education. Also, all job related characteristics (except contingent rewards) have significantly different influence on job satisfaction of employees with different levels of education. The results also showed that pay has greater influence on job satisfaction of the lowest educated employees than it has on job satisfaction of others. For employees with secondary education, communication and relationship with co-workers has such influence. For job satisfaction of employees with higher level of education, relationships with superiors and operating procedures have greater influence, while for the highest educated employees those are fringe benefits and nature of work.

This paper examines the impact of employees' commitment on the productivity of organizations in the Republic of Serbia. Employees' commitment represents the willingness of employees to make efforts for the benefit of the organization and the desire to remain in them. It can be seen as: affective, continuous and normative commitment. Affective commitment reflects a belief in the goals of an organization and a willingness to actively participate in its development; normative commitment reflects a sense of obligation on employees to remain in the organization while continuing commitment is due to employees' assessment that leaving the organization causes greater costs than benefits. Previous research shows that all types of commitment have a major impact on the performance of organizations. As the number of empirical studies on this topic in Serbia is limited, this paper examines the impact of each type of organizational commitment on the productivity of organizations in Serbia, as well as the impact of the overall commitment. The aim of the paper was to identify the types of organizational commitment that have the greatest impact on the performance of organizations in Serbia and to propose measures to HR managers whose implementation can improve the operations of domestic organizations. The starting point of the paper was that employees' commitment has a statistically significant effect on organizational performance. To verify the validity of this assumption, a primary survey was conducted. 169 employees of 17 organizations in Serbia were surveyed. By applying correlation and regression analysis methods, it has been proven that overall organizational commitment, as well as its certain types, have a positive impact on the productivity of organizations in Serbia, with the impact of normative commitment on performance greater than other types of commitment. At the same time, the contribution of continuous commitment to the performance of organizations in Serbia is negligible (statistically insignificant). In line with the obtained results, recommendations for human resources managers in Serbia are proposed. The theoretical implications of the paper are reflected in filling the gap in the national literature in the field of organizational commitment, while the empirical implications are reflected in the mechanisms and measures that are proposed at the end of the paper.

The paper investigates the impact of different factors on the establishment and development of social enterprises (SPs). The aim of this paper is to identify the key stimulants and restrictions of development of SPs in the Republic of Serbia, and to propose measures, the application of which can increase their long-term sustainability. The paper is based on exploratory research using data covering 27 interviews with founders of social enterprises in the Republic of Serbia. By applying the methods of regression analysis, it was found that favorable financial resources (especially grants) are the key stimulants for the establishment of social enterprises, while the enthusiasm of managers of social enterprises has the greatest impact on their development. It was found also that legal regulations and the macroeconomic environment, as well as difficulties in accessing the market, are serious restrictions on the establishment of social enterprises, while lack of knowledge in the field of marketing and management limit the development of social enterprises in the Republic of Serbia.

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