ifrs¶

Source module for IFRS17 CSM amortization simulation

This module contains formulas to simulate amortization of contract service margin (CSM) defined in IFRS17.

This module is a mix-in module to projection module in nestedlife project.

Cells

ifrs17sim.ifrs.CSM_Unfloored(t)[source]¶

Unfloored CSM (38, 44)

ifrs17sim.ifrs.IntAccrCSM(t)[source]¶

Interest accreted on CSM (44(b))

ifrs17sim.ifrs.AdjCSM_FulCashFlows(t)[source]¶

Adjustment to CSM for changes in fulfilment cashflows (44(c)->B96-B100)

Warning

Only B96(b) changes in PV of the future cashflows are implemented.

TODO: Risk Adjustment is yet to be implemented. At the momement this adjustment only considers present value of future cashflows.

TODO: Loss component for onerous contracts are yet to be implemented. At the momemnt this adjustment allows negative CSM.

ifrs17sim.ifrs.PV_CashFlows(t, t_at, t_rate)[source]¶

Present value of future cashflows

This formula takes 3 time parameters. The projection starts from t, and the projected cashflows are discounted back to t_at. The discount rates applied are the ones at t_rate.

Parameters:	t – Time from which the projection t_at – Time discount rates at which are used. t_rate – Time to which the cashflows are discounted.

ifrs17sim.ifrs.TransServices(t)[source]¶

Transfer of services (44(e)->B119)

ifrs17sim.ifrs.CovUnits_BoP1(t)[source]¶

The number of coverage units at t after new business

ifrs17sim.ifrs.CovUnits_EoP(t)[source]¶

The number of coverage units at t

ifrs17sim.ifrs.PV_SumCovUnits(t, t_rate)[source]¶

Present value of cumulatvie coverage units

The non-economic assumptions used for future estimation are the current estimate at time t.

The discount rates used are the ones at time t_rate.