Hi again,
The max under the surplus line is right.
The maximum EML covered by the surplus cover is, (k+1)*R.
Here it is, (4+1)*500 = 2500.
The key thing to remember with surplus lines cover is that it covers amounts proportional to the (k+1)*R bit, and not the actual loss, when working out the proportions.
In this example the eml is 2,300. Since they say that the insurer keeps the maximum retention, we set
(k+1)*500 = 2,300
then this means here k = 3.6, since this is less than 4.
The loss is proportionally split 1:k, 1:3.6, or 21.74% for the insured. If they want to take 3.6 lines, they could take less or more.
Now even if the loss is 100 billion it is still only the first 21.74% kept the insured. (Although, the reinsurers won't like this and will question why the eml is so low etc and might not pay)
So, the loss is actually 3500, so the insured keeps hold of 761.
So, the key is the proportional bit is to the (k+1)*r bit and the actual claim amount.
To the second point, xl contracts can be net or gross of all previous contracts in the real world. I think more often than not they will be based on the gross amount. This makes it easier to design an ri programme also. Imagine having to keep working out net amounts, then applying a new layer, then new net amounts etc.
They don't even have too be net of each other sometimes.... I know of one london market insurer who has two sets of recoveries made on the same 05 hurricane losses, so the net position gets a lot better when the gross goes up.
The xl layer could be placed where ever and it could cover most of the net loss after the surplus cover also. But the lower down the attachment point is, i.e. the more working layer it is, the more expensive it will be.
Last edited by a moderator: Sep 19, 2008