The worked question on this page is original educational practice. It is not represented as a question from an official previous-year examination paper.
01 / UNDERSTANDING
Review the question
Write an original calculation with all inputs on one stated horizon and follow it with a conceptual question about loss concentration. When reviewing a paper, check whether percentages are decimals, whether exposure is at default and whether the task asks for expected loss or another measure. Do not infer a regulatory charge from the simplified product alone.
02 / UNDERSTANDING
The concept in context
Unexpected loss concerns adverse deviation from an expectation, including portfolio interactions. Expected loss is not the worst possible loss, and an average over many possible outcomes need not equal the realised loss in a particular period. Accounting provisions, regulatory capital and internal pricing use frameworks that should be distinguished rather than merged into one formula.
03 / UNDERSTANDING
A worked learning case
A fictional portfolio has a default probability of 2%, an exposure of 100 units and loss given default of 40% over the same teaching horizon. Its simplified expected loss is 0.8 units. The analyst then considers a common industry downturn, noting that realised losses can cluster and exceed the average estimate.
ORIGINAL EDUCATIONAL PRACTICE
Try it before you check.
Is a simplified expected-loss estimate the maximum loss a lender could experience?
Show the answer and reasoning
No; it is an average across possible outcomes under the assumptions.
A probability-weighted average does not cap adverse outcomes. Defaults and recoveries may be worse than assumed, and several borrowers can deteriorate together. The estimate helps structure analysis, but risk decisions also need the distribution of outcomes, concentration and uncertainty, with accounting and regulatory treatments checked under their own applicable frameworks.
Two traps to watch for.
- Using incompatible horizons for probability and exposure estimates.
- Calling the expected-loss number a guaranteed loss ceiling.
YOUR TOPIC-SPECIFIC LEARNING MAP
Learn from the attempt
Define probability, exposure and loss given default consistently.
Calculate the illustrative average and label its assumptions.
Explain how correlated defaults can change portfolio outcomes.
Explain the idea, apply it to a new situation, then check what changed in your reasoning.
BANKERS TUTORIAL · SOURCE NOTES
Keep the source alongside your notes.
Official links provide subject context and authoritative reference material. This guide’s explanation, scenario and question are original Bankers Tutorial learning content.
- iibf.org.in https://iibf.org.in/caiib-certified-associate-IIBF
- iibf.org.in https://iibf.org.in/documents/RulesSyllabus/2026/FlagshipCourses/60%20-%20CAIIB_24.07.25_Change_Final%20Website_23.02.2026.PDF
- www.rbi.org.in https://www.rbi.org.in/Scripts/BS_ViewMasterCirculars.aspx?Id=12815
For CAIIB preparation, check the current official notice before relying on changing dates, rules or examination requirements.
