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where <math>R_{BF}</math> is the loss reserve under the Bornhuetter-Ferguson method, <math>R_{LR}</math> is the loss reserve under the Expected Loss Ratio method, and <math>R_{CL}</math> is the loss reserve under the Chain Ladder method.
where <math>R_{BF}</math> is the loss reserve under the Bornhuetter-Ferguson method, <math>R_{LR}</math> is the loss reserve under the Expected Loss Ratio method, and <math>R_{CL}</math> is the loss reserve under the Chain Ladder method.


If <math>f_2</math> , the loss development factor from the paid-loss-development triangle at duration 2, equals 1.05, determine the reserve estimate as of December 31, CY3 using the expected loss ratio.
If <math>f_2</math>, the loss development factor from the paid-loss-development triangle at duration 2, equals 1.05, determine the reserve estimate as of December 31, CY3 using the chain ladder method.

Revision as of 13:49, 23 October 2024

An actuary is establishing reserves for a group of policies as of December 31, CY3. You are given the following table of reserve estimates for AY1 and AY2:


Reserve estimates as of December 31, CY3
[math]R_{BF}[/math] [math]R_{LR}[/math] [math]R_{CL}[/math]
AY1 400,000 250,000 437,500
AY2 1,120,000 1,200,000 ?

where [math]R_{BF}[/math] is the loss reserve under the Bornhuetter-Ferguson method, [math]R_{LR}[/math] is the loss reserve under the Expected Loss Ratio method, and [math]R_{CL}[/math] is the loss reserve under the Chain Ladder method.

If [math]f_2[/math], the loss development factor from the paid-loss-development triangle at duration 2, equals 1.05, determine the reserve estimate as of December 31, CY3 using the chain ladder method.