Proceedings of the First International Conference on Economics, Business and Social Humanities, ICONEBS 2020, November 4-5, 2020, Madiun, Indonesia

Research Article

Investor Competence and Decision Familiarity Bias Analysis for Portfolio Diversification

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  • @INPROCEEDINGS{10.4108/eai.4-11-2020.2304562,
        author={Sherly Aprian Nurcahya and Satia Nur Maharani},
        title={Investor Competence and Decision Familiarity Bias Analysis for Portfolio Diversification},
        proceedings={Proceedings of the First International Conference on Economics, Business and Social Humanities, ICONEBS 2020, November 4-5, 2020, Madiun, Indonesia},
        publisher={EAI},
        proceedings_a={ICONEBS},
        year={2021},
        month={2},
        keywords={behavioral finance competence effect familiarity bias portfolio diversification},
        doi={10.4108/eai.4-11-2020.2304562}
    }
    
  • Sherly Aprian Nurcahya
    Satia Nur Maharani
    Year: 2021
    Investor Competence and Decision Familiarity Bias Analysis for Portfolio Diversification
    ICONEBS
    EAI
    DOI: 10.4108/eai.4-11-2020.2304562
Sherly Aprian Nurcahya1,*, Satia Nur Maharani1
  • 1: Department of Accounting, Faculty of Economics, State University of Malang
*Contact email: sherlyapriann@gmail.com

Abstract

Investor’s decision to maximize returns and reduce investment risk is to diversify their portfolios. According to the Behavioral Finance study, the investment decision is influenced by emotional psychology. Therefore, this study aims to examine psychological factors, that is investor competence and familiarity bias towards the decision of individual investor portfolio diversification. Data were collected using a questionnaire for active investors in Malang, Surabaya and Jakarta. Research questionnaire were distributed in person or online. The results showed that the competence investors has a positive and significant effect on the decision of investor portfolio diversification. Meanwhile, familiarity bias has a significant negative effect on investor portfolio diversification decision. This reflects that investment decisions in trading are influenced by limited rationality, emotional factors, and individual personality traits. Whereas in conditions of economic and financial uncertainty, its is believed that humans cannot escape the aspects of psychological bias in the decision-making process.