Perform calculations for sums of compound Poisson models.

Free SOA Exam ASTAM (Advanced Short-Term Actuarial Mathematics) lesson in Aggregate Models. 26 min read, ~3,864 words.

If are independent, then is with and. The combined severity is a mixture with mixing weights, not a convolution. and bypass the mixture entirely. MGF factorizes:. A single compound Poisson with mixture severity decomposes into independent compound Poissons at rates. The probability mass of the aggregate follows the convolution form...

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