Found by the PolicyBench cell-deviation audit in /Users/maxghenis/PolicyEngine/policybench/results/local/cell_deviation_audits_20260522_171809.
Case
uk:scenario_001:pension_credit
Audit classification: reference_error.
The reference appears to treat the household as having no income/capital for Pension Credit, despite listed property income, savings interest, and other residential property capital.
Packet facts / audit evidence
- Scenario lists GBP 10,476 of annual property/savings-interest income.
- Scenario lists other residential property value of GBP 55,370 and savings of GBP 455.
- Reference explanation says income is approximately zero and awards full Pension Credit.
- Reference value is GBP 15,022.3984375.
- No parsed model matches the reference; most predict zero or a reduced positive award.
Audit arithmetic:
listed income = 10,476
capital if other residential property counts = 55,370 + 455 = 55,825
capital above 10,000 = 45,825
annual tariff income if counted = about 4,784
assessed income if tariff counted = about 15,260
reference value = 15,022.3984375
If the other residential property and/or property income are intentionally disregarded, the model/reference explanation should expose that. As written, the reference looks like it ignores material income/capital.
Suggested check
Add a direct Pension Credit test with:
- property income
- savings interest
- other residential property capital
- no other income
The test should assert whether each component counts toward Pension Credit income/capital, and the explanation path should make any disregard explicit.
Found by the PolicyBench cell-deviation audit in
/Users/maxghenis/PolicyEngine/policybench/results/local/cell_deviation_audits_20260522_171809.Case
uk:scenario_001:pension_creditAudit classification:
reference_error.The reference appears to treat the household as having no income/capital for Pension Credit, despite listed property income, savings interest, and other residential property capital.
Packet facts / audit evidence
Audit arithmetic:
If the other residential property and/or property income are intentionally disregarded, the model/reference explanation should expose that. As written, the reference looks like it ignores material income/capital.
Suggested check
Add a direct Pension Credit test with:
The test should assert whether each component counts toward Pension Credit income/capital, and the explanation path should make any disregard explicit.