A01Stress-test gapThe study imposes a hypothetical R150 billion annual ageing-related fiscal gap in constant 2026 rand. The figure is a stress-test target, about 5.6 percent of the R2.67 trillion in spending cited from the 2026 Budget Speech. It is not a forecast of the current deficit.
Emergency Ageing Austerity
Policy packages for closing an ageing-related fiscal deficit with lower welfare loss.
PDF · 15 pages · 1.06 MB · 02.05 · GSX:POP-005
Study record · GSX:POP-005
Which policy packages for closing an ageing-related fiscal deficit are examined for lower welfare loss?
Evidence status: Modelled. Exploratory simulation. Version 1.0. Peer review: none. The paragraph under the title is the published summary.
Conditional answer · GSX:POP-005:C01
Among five packages that each close a hypothetical R150 billion annual ageing gap, the balanced transition has the lowest modelled welfare-loss index, 64.5. The low-visible-pain package, which leans on inflation, diffuse cuts, and continuing borrowing, scores 107.3 and leaves about R720 billion of emergency debt after ten years.
Evidence status: Modelled. Sensitivity: high. Depends on GSX:POP-005:A01, GSX:POP-005:A02. The R150 billion gap is a stress test, not a forecast of today's deficit. The welfare scores are internal model indexes, not percentages and not estimates of national wellbeing. The manuscript does not declare any package the single correct answer.
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Related questions
- How can an ageing-related fiscal deficit be closed?
- What is the welfare comparison among emergency responses to demographic fiscal pressure?
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Assumptions
Assumptions
These are the registered model assumptions. A result stays conditional on the ones a claim names.
A02Thirteen capped leversThirteen policy levers are each capped at a visible but limited level. Their mature annual yields are scenario capacities assigned by the model, not official costings.qualitative not a scalar
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Model
Model
The registered model statement. It is a scenario model, and the manuscript remains the full specification.
M01Ageing-austerity package comparisonThe model asks capped levers to close one annual gap and scores five packages on an internal welfare-loss index, political resistance, year-one borrowing, and debt after ten years. Lower index values are better. The scores are not percentages of national wellbeing.GSX:POP-005:M01
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Results
Results
Modelled scenario results. They are not forecasts.
R0164.5 internal welfare-loss index, balanced transitionAll five selected packages close R150 billion once fully implemented. The balanced transition has the lowest welfare-loss index, 64.5. Low visible pain scores 107.3 and leaves about R720 billion of emergency debt after ten years.Five packages, each closing the R150 billion gap
R0257 billion constant 2026 rand of targeted pension measuresThe balanced transition uses R57 billion of targeted pension measures, R24 billion of additional pre-funding, R26 billion of worker tax, R22 billion from a phased retirement-age change, R6 billion of weaker indexation, and R15 billion of continuing borrowing. It avoids healthcare and non-age service cuts.Balanced-transition package
Sensitivity
- High · 1
- Moderate · 1
- Low · 0
Limitations
The R150 billion gap is a stress test, not a forecast of today's deficit. The welfare scores are internal model indexes, not percentages and not estimates of national wellbeing. The manuscript does not declare any package the single correct answer.
These are the manuscript's assigned scenario yields for one package. They are not an official budget costing, and a different cap on any lever changes the mix.
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Claims
Claims
Each claim names the assumptions it uses and the limitation that travels with it.
C01GSX:POP-005:C01Among five packages that each close a hypothetical R150 billion annual ageing gap, the balanced transition has the lowest modelled welfare-loss index, 64.5. The low-visible-pain package, which leans on inflation, diffuse cuts, and continuing borrowing, scores 107.3 and leaves about R720 billion of emergency debt after ten years.Modelled · high sensitivity
C02GSX:POP-005:C02The balanced transition in the model closes the gap with R57 billion of targeted pension measures, R24 billion of additional pre-funding, R26 billion of worker tax, R22 billion from a phased retirement-age change, R6 billion of weaker indexation, and R15 billion of continuing borrowing. It does not cut healthcare or non-age services.Modelled · moderate sensitivity
Sources and reproducibility
The PDF and complete Markdown source are both published.
Full manuscript: 3 616 words across 15 indexed headings. Source checksum: 913ccaac3c26…. Code recorded: yes. Data recorded: yes. Environment recorded: no. Published files: 3. the published statement does not rely on a recorded random seed A public code repository is not published.
Community record · version 1.0
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Pakang Senosha is the author on this version. External review: none. A later critique or revision appears here after a person publishes it.
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