Behavioural Finance and Financial Crises

This chapter provides an in-depth examination of the psychological factors influencing financial crises, using behavioural finance models to elucidate the systemic risks intensified by investor biases. This chapter analyses pivotal crises, such as the Tulip Mania of 1637, the 1997 Asian Financial Crisis, the 2008 Subprime Mortgage Crisis, and the Bitcoin boom-and-bust cycles, to demonstrate the impact of cognitive and emotional variables on market dynamics during stressful times. An incisive examination of overconfidence, herd behaviour, and loss aversion elucidates their contributions to the formation of speculative bubbles, the intensification of market crashes, and the continuation of financial instability. The chapter use prospect theory to examine how investors’ asymmetric reactions to profits and losses lead to risk mispricing and irrational behaviour. Additionally, principles like mental accounting and anchoring elucidate how skewed perceptions of value and risk have cascade impacts throughout financial institutions. Case studies are underpinned by quantitative data and behavioural research, illustrating how the interaction of cognitive biases and systemic weaknesses exacerbates financial risks. The chapter assesses the impact of regulatory deficiencies and information asymmetries in worsening crises, highlighting the need for policy measures that include behavioural variables. This chapter emphasises the essential integration of behavioural finance into risk management frameworks via a synthesis of theory and historical study to alleviate the psychological factors contributing to systemic instability.