Which behavioral bias is illustrated when an investor treats an inheritance as separate from the rest of the portfolio?

Which behavioral bias is illustrated when an investor treats an inheritance as separate from the rest of the portfolio?

• A. Rationalization
• B. Availability
• C. Hindsight bias
• D. Mental accounting

Answer: (D)

Mental accounting is the tendency to view money as belonging to separate buckets or accounts and to apply different rules to each, rather than considering the portfolio as a single, integrated whole. When an inheritance is treated as its own separate asset, the investor might invest it differently from the rest of the portfolio, earmark it for a specific purpose, or take on different levels of risk or spending. This segmentation can lead to suboptimal decisions because the overall risk, diversification, and return goals are not evaluated together. For example, the inheritance might be put into a high-risk play while the rest of the assets are kept conservative, or it might be spent rather than reinvested in a way that would improve the total portfolio. This behavior contrasts with a holistic view of assets, where all funds are considered together to align with risk tolerance, time horizon, and objectives.

Mental accounting is the tendency to view money as belonging to separate buckets or accounts and to apply different rules to each, rather than considering the portfolio as a single, integrated whole. When an inheritance is treated as its own separate asset, the investor might invest it differently from the rest of the portfolio, earmark it for a specific purpose, or take on different levels of risk or spending. This segmentation can lead to suboptimal decisions because the overall risk, diversification, and return goals are not evaluated together. For example, the inheritance might be put into a high-risk play while the rest of the assets are kept conservative, or it might be spent rather than reinvested in a way that would improve the total portfolio. This behavior contrasts with a holistic view of assets, where all funds are considered together to align with risk tolerance, time horizon, and objectives.