Employee performance is a key determinant of organizational effectiveness. However, previous studies have reported inconsistent findings regarding the effects of organizational culture, work environment, and work-life balance on employee performance. This study examines the direct effects of organizational culture and work environment on employee performance and investigates the role of work-life balance as a mediating variable. A quantitative approach was employed using survey data collected from 76 employees of the Bank Indonesia Representative Office of Bangka Belitung Islands Province. Data were analyzed using descriptive statistics, validity and reliability tests, multiple regression analysis, and Sobel mediation testing. The results reveal that organizational culture and work environment positively and significantly influence employee performance. Organizational culture also has a positive and significant effect on work-life balance. In contrast, work environment has no significant effect on work-life balance, and work-life balance does not significantly affect employee performance. Furthermore, work-life balance does not mediate the relationships between organizational culture, work environment, and employee performance. The study highlights the stronger role of direct organizational factors in improving employee performance than work-life balance as a mediating mechanism.
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