Sample Questions
Allocated Loss Adjustment Expenses (ALAE) are claim-specific costs that can be directly assigned to an individual claim file, including defense counsel fees, expert witness costs, independent medical exams, and outside adjuster fees retained for that particular claim. Because they are identifiable at the claim level, ALAE is included in the total loss cost used in pure premium calculations.
Mack's model (1993) makes three key assumptions:
1. — the expected cumulative losses at the next age depend only on the current cumulative losses through a proportional relationship.
2. — variance is proportional to current cumulative losses.
3. are independent across accident years .
In Mack (1993), the total MSEP for the aggregate reserve includes cross-terms:
The sum over starts at — the first future development interval for the more mature accident year — and runs to the last interval. This captures the parameter error correlation: both accident years and will be projected using the same estimated factors for those future intervals, so their reserve errors are positively correlated.