International Rize Trade and Economy Summit and Congress, Rize, Türkiye, 22 - 23 Ekim 2025, cilt.9798896952404, ss.122-139, (Tam Metin Bildiri)
This study examines the relationship between personality traits and transportation expenditures from a behavioural finance perspective, offering a comprehensive analysis of how psychological tendencies shape individuals’ transportation behaviours. Going beyond the traditional assumption of rational decision-makers in classical finance theories, the behavioural finance approach emphasizes that economic decisions are influenced not only by objective variables such as income, price, and cost but also by personality traits, emotional tendencies, and cognitive biases. In this context, the Big Five Personality Model (extraversion, agreeableness, conscientiousness, emotional stability, and openness to experience) was used to evaluate individuals’ personality profiles and to investigate how these traits affect transportation mode choices and spending patterns. Data were collected through an online survey from a broad sample, and the reliability and validity of the results were verified through various statistical analyses. After confirming the factor structure of the scales, Structural Equation Modeling (SEM) was applied to analyze the impact of personality dimensions on transportation spending. The findings revealed that the agreeableness trait had a positive and statistically significant effect on transportation expenditures (β=0.38; p=0.003). This suggests that more agreeable individuals tend to allocate more resources to transportation, possibly due to their social interactions, environmental concerns, or comfort expectations. In conclusion, the study demonstrates that transportation expenditures are shaped not only by economic indicators but also by personality-driven psychological dynamics, thereby making an original contribution to the behavioural finance literature. Furthermore, the results highlight the importance of considering individual differences in transportation planning, pricing strategies, and sustainable transportation policies, and point to the potential benefits of integrating personality-based approaches into decision-making processes.
Keywords: Sustainable transportation, Personality traits, Behavioural finance, Big five personality model