Investment decision-making is the academic field and practical process concerned with how individuals, organizations, and governments allocate financial or other resources among competing investment opportunities. This research concept investigates the complex interplay of economic, psychological, and behavioral factors influencing these allocation choices, alongside the analytical models and methodologies employed for evaluating potential returns, assessing risks, and selecting optimal strategies under conditions of uncertainty. Its significance lies in understanding the determinants of capital allocation, the efficiency of resource utilization, and the dynamics of financial markets and economic growth.