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Q-24. The LDA process is applied to each cluster of losses through a unit of measure (UoM) that needs to be further aggregated into a total loss distribution. Which of the following statements about Units of Measure (UoM) in the context of operational risk is incorrect?
A
The choice of UoM should reflect how the business is organized and the intended use of the model.
B
Copulas are used to aggregate UoMs by modeling dependency structures, including correlations and tail dependencies.
C
To accurately model the tail of operational loss distributions, it is only necessary to complete the dataset with higher value losses.
D
A trade-off exists between the homogeneity of the data sets and data availability, impacting the precision of the model and its complexity.