This study investigates the relationship between conflict of interest management and administrative integrity, with the mediating role of oversight institutions, in the Tehran Province Judiciary. The research population included all 1,897 judges in Tehran Province, with a sample size of 320 participants selected randomly based on Morgan’s table. Data were collected using three standard questionnaires: Administrative Integrity (Hoy et al., 1987), Conflict of Interest Management (Putnam & Wilson, 2015), and Oversight Institution (Anthony et al., 1989).
Using structural equation modeling (SEM) with partial least squares (PLS), the findings revealed that conflict of interest management significantly and positively impacts administrative integrity (R² = 0.443). Additionally, oversight institutions positively influenced both administrative integrity (R² = 0.761, path coefficient = 0.761) and conflict of interest management (R² = 0.556, path coefficient = 0.556). The study also identified the mediating role of oversight institutions in the relationship between conflict of interest management and administrative integrity (VAF = 0.423).
In conclusion, effective oversight institutions play a crucial role in monitoring judicial performance, improving conflict of interest management, and enhancing administrative integrity. These findings highlight the importance of strengthening conflict of interest management and oversight mechanisms to promote integrity within the judiciary.