46 Pricing in General Insurance
If there is an individual limit L but no AAD, there is a retained amount both below the
deductible and above the limit:
Totalretainedbelow thedeductiblemin EEL
Tot
=
(, )X
j
aal retained abovethe limit ma
EL
Totalc
−
∑
)XL
j
0
eeded min EEL=−
(,max( ,))LX
j
0
(3.4)
If there is an AAD as well as an EEL and a limit L, the exact workings depend crucially
(although often not materially) on the exact wording of the contract. Specically, it depends
on whether the limit works on a ‘drop-down’ or on a ‘stretch-down’ basis.
If the policy works on a drop-down basis, once the AAD is reached the insured still has
a cover of size L: that is, instead of being covered between EEL and L + EEL as was the case
with the rst claims before ...