ASSUMPTIONS
Actuarial assumptions
(1) Rate of interest:
For fully-indexed and non-indexed benefits:
The interest rates are those determined in accordance with the Standard of Practice for Determining Pension Commuted Values confirmed by the board of directors of the Canadian Institute of Actuaries on 15 June 2004, hereafter called the “CIA Standard”.
For partially indexed benefits:
The interest rates are determined according to the following formula:
((1 + interest rate for a non-indexed benefit) / (1 + indexing rate for a partially-indexed benefit)) - 1
The result must be rounded to the nearest multiple of 0.25%.
(2) Indexing rate:
(a) for a fully-indexed benefit according to the rate of increase in the pension index, the indexing rate is computed in the manner described in the CIA Standard;
(b) for a benefit indexed according to the excess of the rate of increase in the pension index (PI) over 3% or to half of the rate of increase in the pension index, the indexing rate corresponds respectively to the excess of the indexing rate computed in the manner provided in subparagraph a over 3% or to half the indexing rate computed in the manner provided in that subparagraph.
In order to take into account the inflation rate variations, the following additions are made to the results of effective indexing formulas for actuarial value computation purposes.
Inflation Addition to Adjusted Addition to Adjusted
level the result of indexing the result of indexing
the PI-3% rate the 50% PI, rate
formula min. PI-3%
formula
0.5 0.1 0.1 0.05 0.3
1.0 0.1 0.1 0.10 0.6
1.5 0.3 0.3 0.15 0.9
2.0 0.5 0.5 0.20 1.2
2.5 0.7 0.7 0.15 1.4
3.0 1.0 1.0 0.20 1.7
3.5 0.8 1.3 0.25 2.0
4.0 0.6 1.6 0.30 2.3
4.5 0.5 2.0 0.45 2.7
5.0 0.4 2.4 0.50 3.0