Where the insurer discounts using a risk-free rate, it needs its model to determine such a
rate or, more strictly, a set of risk-free rates according to term. It is common practice in
the capital markets to use a risk-free rate derived from swap rates. Dullaway and
Needleman (2004) say, “Swap rates can be thought of as representing the (essentially risk
free) rate at which high credit quality institutions can borrow or lend, providing they
maintain their credit quality.” Using swap rates would give a risk-free rate around 20–30
basis points above gilts.
The Board of Actuarial Standards (2006) indicates that credit can be taken for that
part of the excess yield on swaps over gilts that cannot be accounted for by credit risk.
Several insurers have interpreted this as meaning they can use a rate 10 basis points
above gilt yields. However, Sheldon and Smith (2004) ask, “If the swaps are truly risk
free, then why would an office knowingly accept lower than a risk free return on its gilt
portfolio?”
Where the insurer discounts using a risk-free rate, it needs its model to determine such a
rate or, more strictly, a set of risk-free rates according to term. It is common practice in
the capital markets to use a risk-free rate derived from swap rates. Dullaway and
Needleman (2004) say, “Swap rates can be thought of as representing the (essentially risk
free) rate at which high credit quality institutions can borrow or lend, providing they
maintain their credit quality.” Using swap rates would give a risk-free rate around 20–30
basis points above gilts.
The Board of Actuarial Standards (2006) indicates that credit can be taken for that
part of the excess yield on swaps over gilts that cannot be accounted for by credit risk.
Several insurers have interpreted this as meaning they can use a rate 10 basis points
above gilt yields. However, Sheldon and Smith (2004) ask, “If the swaps are truly risk
free, then why would an office knowingly accept lower than a risk free return on its gilt
portfolio?”
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