In the countries in transition, like the Republic of Serbia, system innovations are being introduced, such as the implementation of internal controls in enterprises. The authors of the paper formulated a research question which is if the introduction of internal controls could have an impact on the improvement of governance in public utility enterprises founded by the units of local self government. The main goal of the research was to identify possible improvement in corporate operations measured by an increase in revenues made by public utility enterprises following the implementation of internal controls. In addition to that, the secondary goal of the authors was to determine differences in operating efficiency between public utility enterprises and the so called other enterprises that put in place internal controls in their current operations. Further on, the authors of this paper wanted to find out which type of internal controls in place in public utility enterprises and other enterprises enabled best performance. The usefulness of the study is visible in the presented results of the research. Specifically, they indicate significant differences between public utility enterprises and other enterprises, both in terms of implementation of internal controls and in their performance, which was proven in 2018. In addition to that, performance of public utility enterprises founded by local self-government units is found to be better than that of the so called other enterprises after the introduction of internal controls.

More demanding management requires management to foster the application of different mechanisms. One of the upcoming ways of improving management is the use of the fair value of property and equipment in the business books of the company. The authors of this study emphasize the importance of fair valuation of agricultural equipment, processing surveyed 382 legal entities of the Republic of Serbia, in the case of widespread tractor IMT 533 agricultural holdings in 207 and 175 joint-stock companies. To show the real application of fair value, the research period lasted from 2015 to 2018. We came to the basic conclusion that there is a statistically significant relationship between organizations, enterprises and the age of the tractor to the application of the fair value of the tractor in the business books of the company. There is also a conclusion that fair financial reporting brings about benefits to agricultural entities of other legal forms.

This study shows the importance of introducing control over the work of internal auditors in public enterprises. The aim of the study is to indicate possible benefits in the operations of public enterprises following the control conducted over the work of internal audit by public finance bodies. To reach their aim, the authors conducted a research and determined the existence of differences in the efficiency of operations in public utility enterprises with internal audit in place before and after the control conducted by public finance bodies. The obtained results show there is a strong impact of the control performed by the public finance bodies set up to supervise the work of internal auditors in public enterprises on the operating results expressed as total revenues of public enterprises.