dd&r/extended reserve panel laura a. johnson, fcas, maaa
TRANSCRIPT
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DD&R/Extended Reserve Panel
Laura A. Johnson, FCAS, MAAA
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Actual Practice - Using the Model proposed in the Walker & Skrodenis article
Changes to the Model
Additional Considerations
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Changes to the Model
Expected number of free tail executions
Lapses
Average load across all ages
Applying the load
Reserve calculation if other than start up year
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Changes to the Model - Expected Number of Free Tail Executions
Apply Death, Disability & retirements rates all to the beginning of the year population rather than cumulative
More Conservative - assumes no “overlap” exists in the rates
Impact is small -> 12.166% changes to 12.322%
Specific calculation -> pg. 338, (7)=(3)x[(4)+(5)+(6)]
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Changes to the Model - Lapses
Apply Lapse (non renewal) rates to the beginning of the year population rather than to the end of year population
Correct method depends on how the lapse rate itself is calculated
Impact is moderate ->12.322% changes to 12.081%
Specific calculation ->pg. 338, (9) = (3) x (8)
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Changes to the Model -
Average Load across all ages
Short term approach - weight together based on current insureds Long term approach - give more weight to younger insureds since they will be around
funding longer - i.e., weight by insured and time
Advantages - average load does not change every year
- consistent with calculation by age
Danger - if in practice, the load is recalculated each year any way,
you’ll end up short if you use the long term average
Impact -> 12.081% under short term approach
10.780% under long term approach
Specific calculation -> pg. 344, (4) (avg) = sum of (16) from Model 2 times number of insureds at each age over all ages divided by the sum of (14) from Model 2 times number of insureds at each age over all ages
in other words, weight the numerator and the denominator and
sum across those first, then divide
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Changes to the Model - Applying the Load
Note load is stated as a percentage of pure premium (loss)
Can use that pure premium load as a rate load only if there
are no Fixed Expenses
Otherwise, need to convert to a rate load
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Changes to the Model - Reserve Calculation
Reserve = Future DD&R Losses - Future DD&R Premium
Thus, same age insureds need the same reserve regardless of what
their entry age (the age they began funding) was
Need to restate Future DD&R Losses and Premiums so that the current
age is “time 0”
Impact -> none if current age = entry age (i.e., start up year)
-> potentially huge impact otherwise: 50-75% lower in our
experience
Specific calculation -> pg. 339, column (18) and (19): divide current
formula by column (10)
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Additional Considerations
No age bands - matrix of insureds by entry age and current age
Retirement requirements for free tail: i.e., 55&10 or 65&5
Experience modification factor (note: don’t include expense considerations)
Actual utilization rate
Expected future funding of the reserve
Expected redundancy/inadequacy of future rates