This paper provides an analysis of the paradigm shift brought about by the emergence of empirical findings in the field of behavioural economics, which challenged the neoclassical approach. Behavioural economics originated as an academic field that extensively drew inspiration from diverse social sciences in order to strengthen the theoretical frameworks applied by economists to human decision-making. The results of numerous cited studies have been synthesized in order to present psychological and neurological findings that contribute to the comprehension of behavioural variables. A concise overview of cognitive biases and their impact on the decision-making process is provided prior to delving into the how and what of emotions within the identical framework. This review focuses on two primary categories of emotions: incidental and integral. For each, the predominant discourse revolves around their role and impact on the process of making financial decisions. Subsequent to identifying domains that lend themselves to additional investigation, the review concludes by discussing the practical and conceptual consequences.