“…The way for its modernisation was opened in the end of the 20th century by the start of public administration reform related to wage decentralisation, focus on civil servant qualifications, performance results and level of responsibility in rewarding for the performance of employees (Bossaert, Demmke, Nomden and Polet, 2001). A pay-forperformance system, when the increase in the civil servant's salary is related to the evaluation of his/her activity, was introduced in the civil service: when the activity is productive, and the results are betterwages increase faster, when performance is worsethey increase slower and when they are unsatisfactorywages do not increase (Brewer and Kellough, 2016). Although this system is considered more flexible, fairer and allowing for a better link between the salary of a civil servant with his performance results and motivation compared to the traditional one (Willems, Janvier and Henderickx, 2006;Rosen, 2007;Myers, 2008;Houston, 2009;Kim, 2016), however, due to the specifics of civil service activities, their complexity and multi-functionality, limited possibilities to assess the contribution of a single public civil servant to a joint activity as well as the results or their absence, the application of the pay-for-performance system in the civil service is complex, expensive, uncertain and difficult to apply (Perry, Mesch and Paarlberg, 2006;Langbein, 2010;Walther, 2015;Brewer and Kellough, 2016).…”