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The impact of behavioural biases on the behaviours of informed and uninformed individual stock investors: case of the Egyptian Stock Exchange

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  • Laila Gamal
  • Hayam Wahba

Abstract

Behavioural finance theories study human psychological and emotional biases. Behavioural finance explains the effect of psychological and emotional biases on the financial behaviour of both investors and financial markets. These biases often lead people to make irrational investment decisions. Understanding these biases can help investors to spend their money more rationally and make better-informed decisions. This paper examines the influence of a full array of behavioural biases on Egyptian stock investors' behaviour in the Egyptian stock market. Our research sample is composed of 407 stock investors in Egypt. The research sample was divided into two classes (informed and uninformed stock investors) based on their financial knowledge and skills. Based on the analysis done to the responses collected from an online questionnaire, the findings show that both classes of investors are affected by emotional, cognitive, and behavioural biases. These biases adversely affect their behaviour, leading to irrational stock investment decisions. However, the level of impact varies significantly by the level of financial knowledge.

Suggested Citation

  • Laila Gamal & Hayam Wahba, 2025. "The impact of behavioural biases on the behaviours of informed and uninformed individual stock investors: case of the Egyptian Stock Exchange," Afro-Asian Journal of Finance and Accounting, Inderscience Enterprises Ltd, vol. 15(1), pages 117-141.
    • Handle: RePEc:ids:afasfa:v:15:y:2025:i:1:p:117-141
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