ASSET-HE-EE-DC-003-001 · Version 1.1.0

Discount Rate Present-Value Explorer

Explore how timing and separate cost and health-outcome discount rates change present values and incremental results.

Time horizon ≠ discount rate. The horizon determines which consequences are included. Discounting changes the present value assigned to consequences occurring at different times.

1. Reference-case assumptions

Cost discount rate (%)Outcome discount rate (%)Decision threshold Currency / price yearValue basisTiming

Enter 3.5 for 3.5%, not 0.035. Time zero is not discounted; fractional years are supported.

2. Incremental stream

Time	Δ Cost	Δ Outcome	PV Δ Cost	PV Δ Outcome

3. Reference-case result

Calculate to audit the inputs.

4. Sensitivity scenarios

Scenario A cost rate (%)Scenario A outcome rate (%)Scenario B cost rate (%)Scenario B outcome rate (%)Scenario C cost rate (%)Scenario C outcome rate (%)

Scenario	Cost rate	Outcome rate	PV ΔCost	PV ΔOutcome	ICER	INMB

Interpretation safeguards

Use the relevant jurisdictional reference-case rates; no single rate is universal.
Cost and health outcomes may use equal or differential rates.
Do not mix nominal values with real rates or real values with nominal rates.
Do not discount time-zero consequences.
Sensitivity scenarios do not replace the required reference case.
Spreadsheet NPV functions commonly assume end-of-period flows and need care with time zero.