Table 1.
How the benefit cost ratio varies depending on critical assumptions (sensitivity analysis of the insulation study).
| Case | Base Case | Sensitivity Analysis Cases | |||
|---|---|---|---|---|---|
| Case A | Case B | Case C | Case D | ||
| Assumptions | 5% discount rate | 3.5% | 5% | 5% | 3.5% |
| No mental health benefits counted | No mental health benefits counted | Mental health benefits included | No mental health benefits counted | Mental health benefits included | |
| Low social cost of carbon | Low social cost of carbon | Low social cost of carbon | Higher social cost of carbon | Higher social cost of carbon | |
| Benefit cost ratio (BCR) | 1.87 | 2.24 | 3.58 | 1.94 | 4.36 |
Varied assumption shown in bold for cases A to D.