This study aims to analyze the effects of financial literacy, financial confidence, and locus of control on financial well-being, with financial behavior as a mediating variable among the productive-age population in the Special Region of Yogyakarta (DIY). The study employed a quantitative explanatory research design involving 400 respondents selected through purposive sampling. Data were collected using an online questionnaire and analyzed using Structural Equation Modeling-Partial Least Squares (SEM-PLS) with SmartPLS. The results show that financial literacy has no significant effect on either financial behavior or financial well-being. Financial confidence has a positive and significant effect on financial behavior but does not have a significant direct effect on financial well-being. Locus of control has positive and significant effects on both financial behavior and financial well-being, while financial behavior positively and significantly affects financial well-being. Financial behavior does not mediate the relationship between financial literacy and financial well-being, but fully mediates the relationship between financial confidence and financial well-being and partially mediates the relationship between locus of control and financial well-being. These findings indicate that improving financial well-being requires not only financial knowledge but also financial confidence, personal control, and consistent implementation of responsible financial behavior. The findings provide practical implications for strengthening financial well-being programs by integrating financial education with behavioral and psychological interventions.
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