Mahler question 5.8 has you determining the premium trend period length and dates for different scenarios.
a) Trend data is WP and use the one-step method. Experience period CY EP.
The answer does (avg date at which EP is written in experience period - avg projection period date of writing).
Could I have instead done (avg date at which EP is earned - avg projection period date of earning)?? I know it produces the same period length, but would my dates technically be "wrong" ???
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The solutions choose written dates as the trend dates if the trend series data is WP and earned dates as the trend dates if the trend series data is EP. This seems fairly arbitrary. If the trend series data is WP and you went with earned trend dates, you'd still get the same trend period lengths for both one-step and two-step methods. Is this standard practice or for all of these sub-problems in 5.8 are there alternate trend date answers (the trend period length answers will still be the same I know).
a) Trend data is WP and use the one-step method. Experience period CY EP.
The answer does (avg date at which EP is written in experience period - avg projection period date of writing).
Could I have instead done (avg date at which EP is earned - avg projection period date of earning)?? I know it produces the same period length, but would my dates technically be "wrong" ???
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The solutions choose written dates as the trend dates if the trend series data is WP and earned dates as the trend dates if the trend series data is EP. This seems fairly arbitrary. If the trend series data is WP and you went with earned trend dates, you'd still get the same trend period lengths for both one-step and two-step methods. Is this standard practice or for all of these sub-problems in 5.8 are there alternate trend date answers (the trend period length answers will still be the same I know).
Premium Trend Period Dates
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