Management and Economics Journal (MEC-J)
Vol 10, No 2 (2026)

The Role of Financial Literacy in Mediating Overconfidence, Representativeness, Anchoring, and Availability Bias on Investment Decisions

Viana Khoerunnisa (Universitas Muhammadiyah Purwokerto)
Ika Yustina Rahmawati (Universitas Muhammadiyah Purwokerto)
Naelati Tubastuvi (Universitas Muhammadiyah Purwokerto)
Alfato Yusnar Kharismasyah (Universitas Muhammadiyah Purwokerto)



Article Info

Publish Date
31 Aug 2026

Abstract

This study aimed to investigate the relationship between heuristic behavioral biases and investment decision-making among Generation Z in Banyumas Regency, based on Behavioral Finance Theory and Heuristic Behaviour Theory, using financial literacy as a mediator in the decision-making process. The methods used in this study are quantitative, employing purposive sampling techniques with data from Generation Z in Banyumas who invest in financial and real assets, comprising 282 respondents aged 18-29 years. Data were collected via a questionnaire and analyzed using the SmartPLS method to test the relationship among variables in the research model, as measured through questionnaire indicators. The results showed that availability has a significant positive direct effect on investment decisions; overconfidence and availability have significant positive effects mediated by financial literacy; whereas representativeness does not have a significant effect on investment decisions, either directly or indirectly. A key finding of this study is that financial literacy partially mediates heuristic behavior regarding investment decisions. The results of this study indicated that the higher a person’s financial literacy, the more rational they will be in making investment decisions to achieve returns on their investments.

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Journal Info

Abbrev

mec

Publisher

Subject

Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Social Sciences

Description

Management and Economics Journal (MEC-J) is a peer-reviewed and open access journal that focuses on management and economics fields. This journal publishes original articles, reviews, and also interesting case reports. Letters and commentaries of our published articles are welcome. Subjects suitable ...