Unit study guide · NISM Series XXI-B
Behavioral Finance
6 questions in this unit
What this unit covers
- Which bias describes feeling a loss more strongly than an equal-sized gain?
- Which bias most directly explains treating a share’s old purchase price as the main guide to its current value?
- An investor treats a dividend as money to spend freely but protects an equal sale receipt as untouchable capital. Which bias is illustrated?
- After several successful forecasts, a manager becomes certain of future accuracy and sharply narrows expected-outcome ranges. Which bias is most likely?
- A client accepts a 90% chance of no loss but rejects the equivalent 10% chance of loss. Which bias explains the difference?
- A review finds that a client focuses on purchase prices and reacts differently to equivalent gain and loss descriptions. Which process best addresses both distortions?
Key ideas
From the practice bank · 1
Which bias describes feeling a loss more strongly than an equal-sized gain?
Loss aversion describes a loss having a stronger psychological impact than an equal gain. It can distort decisions about risk and whether to realise a loss. Remember: Equal monetary gains and losses need not feel equally important.
Hint Compare the emotional impact of equal gains and losses. Common mistake: Assuming people evaluate gains and losses symmetrically.
XXI-B-083From the practice bank · 2
Which bias most directly explains treating a share’s old purchase price as the main guide to its current value?
Anchoring occurs when the old purchase price has excessive influence over the current assessment. Current value should be assessed using current evidence rather than that price alone. Remember: A past transaction price is not proof of present investment value.
Hint Look for an initial number that has gained too much influence. Common mistake: Treating the price paid as an objective measure of what the asset must be worth.
XXI-B-084From the practice bank · 3
An investor treats a dividend as money to spend freely but protects an equal sale receipt as untouchable capital. Which bias is illustrated?
Mental accounting is illustrated because economically interchangeable money is treated differently according to its source. These mental labels can obscure the overall financial position. Remember: Money’s source can create psychological labels without changing its purchasing power.
Hint Ask whether identical purchasing power is being labelled differently. Common mistake: Analysing each mental account while ignoring the combined portfolio.
XXI-B-085From the practice bank · 4
After several successful forecasts, a manager becomes certain of future accuracy and sharply narrows expected-outcome ranges. Which bias is most likely?
Overconfidence is likely because the manager overstates the precision of future forecasts after past successes. Outcomes should still be evaluated across a realistic range. Remember: A run of good outcomes does not remove forecasting uncertainty.
Hint Consider whether past success justifies the claimed certainty. Common mistake: Confusing recent success with evidence of near-certain future judgement.
XXI-B-086From the practice bank · 5
A client accepts a 90% chance of no loss but rejects the equivalent 10% chance of loss. Which bias explains the difference?
Framing explains the different response because the same probability is presented as a favourable or unfavourable outcome. The economic information is unchanged. Remember: Equivalent information should be compared in a consistent format.
Hint Check whether the underlying probability changed or only its presentation. Common mistake: Treating differently worded probabilities as different investment risks.
XXI-B-087From the practice bank · 6
A review finds that a client focuses on purchase prices and reacts differently to equivalent gain and loss descriptions. Which process best addresses both distortions?
Using current evidence and a consistent outcome format reduces the influence of both old reference prices and framing. The review should still include meaningful downside possibilities. Remember: Behavioural controls should improve evidence and consistency, not hide unpleasant information.
Hint Improve how the decision is made rather than merely making it feel comfortable. Common mistake: Trying to remove bias by presenting only the version the client prefers.
XXI-B-088