Not Just More Money: How Financial Behavior Converts Self-Efficacy and Side Incomes into Well-Being

Lecturers’ financial well-being is often understood as an income-related issue, yet in the academic profession, confidence in managing money and multiple income sources does not necessarily translate directly into financial security. This study explains how financial self-efficacy and multiple income sources shape financial well-being through disciplined financial behavior. Using a quantitative explanatory design, data were collected through a mixed-mode survey of 350 lecturers at Indonesian public universities. The data were analyzed using Partial Least Squares Structural Equation Modeling (SEM-PLS), supported by assessment of reliability, validity, mediation, common method bias, and collinearity. The results show that financial self-efficacy has a positive effect on financial behavior, while multiple income sources also have a positive effect, although to a lesser extent. Financial behavior emerged as the strongest direct predictor of financial well-being and significantly mediated the effects of financial self-efficacy and multiple income sources. These findings suggest that lecturers’ financial well-being is not determined merely by income or financial confidence, but by the ability to translate financial confidence and income resources into disciplined practices such as budgeting, saving, debt control, and future planning. This study adds to the literature of personal finance, behavioral finance, and higher education management by conceptualizing the financial well-being of lecturers as a resource management result through financial behavior.