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This article examines the impact of investment budgeting on public and government productivity. The main goal of this research is to examine the positive and negative aspects of participatory budgeting on the level of public trust and government efficiency. To achieve this goal, the meta-analysis method has been used. In this research, 30 valid studies that were conducted between 2010 and 2023 have been examined. The data of these studies have been analysed using SPSS and Meta-Analysis Manager statistical software. The results show that budgeting significantly increases public trust and improves government efficiency. Also, data analysis shows that the effectiveness of this method is different in different cases, according to culture and political policy. The findings indicate that participatory budgeting can be used as an efficient tool to improve the efficiency of governments and increase public trust. The general conclusion of this research shows that the acceptance and implementation of participatory budgeting in government policies can lead to the improvement of relations between the government and the people and the promotion of productivity.
Almasi et al. (Sat,) studied this question.