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Reinsurance recovery?

R

r_v.s

Member
An insurer (C) takes on a risk with EML of $10m. C has a risk excess of
loss contract $5m xs $1m with reinsurer A which applies before a surplus
treaty with reinsurer B. The surplus treaty provides a maximum
retention of $3m and 4 lines with the minimum always being ceded.
Determine how much A, B and C each pay if a claim for $9m occurs.

The solution explains- "the EML is split in the ratio 5:2:3 among A:B:C."

Given the loss is more than a million, A pays 5m.
The remaining being reinsured with B...Here is where I have a doubt...
What is the amount that is ceded under the surplus treaty?
The first layer was 5m XS 1m. Is this 1m borne entirely by C and surplus treaty applies to the remaining 4m? Or does the surplus treaty apply to the remaining 5m?
 
This looks like 303 Sept 2001 Q 5(iii)

The excess of loss of $5m xs $1m applies before the surplus. So the loss net of the XL applies to the surplus treaty.

Given the EML is $10m, applying the excess of loss treaty gives an EML net of the XL of $5m ($1m retention plus $4m vertical exhaustion). All of this $5m is covered by the surplus treaty.

Since the minimum is always ceded, the maximum is therefore always retained - ie $3m retained and hence $2m ceded.

Therefore EML split 5:2:3 between A:B:C.

When the claim of $9m arises, the XL applies first giving a recovery from A of $5m and the net loss remaining $4m goes to the surplus treaty where it is split between B and C in the ratio 2:3.
 
This may sound a bit of dumb question but if the XoL is 5mln xs 1mln then surely the Surplus is applied on 6mln and above?

This is how I read it - please correct me

Layer upto 1mln = covered by insured
Layer 1mln to 6mln = 5 mln which is covered by A
Layer 6mln to 10mln = 4 mln split by B and C in proportion of 1:3

i.e 5:1:4.

So for 9mln claim
C gets the first 1mln
A gets the next 5mln (taking us to 6mln of the claim)
B gets (1/4)*(3mln) which is 0.75 mln
C gets (3/4)*(3mln) which is 2.25mln
hence the final amount split is (5,0.75,3.25) which is the alternate answer in the examiners mark scheme.

I just don't see how the excess layer finishes at 5mln if its 5mln xs 1mln

Any ideas?
 
if the XoL is 5mln xs 1mln then surely the Surplus is applied on 6mln and above?

Not quite, the surplus applies net of XL. So EML net of XL = EML-XL recovery = 10m-5m = 5m.

Better to follow Darren's explanation above.
 
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