Macro-financial scenario design
Adverse scenarios set paths for growth, unemployment, rates and asset prices, with the narrative and historical calibration stated.
GRA · Financial Stability
Spatial financeWhere capital meets hazard, exposure and transition
Scenario analysis and stress testing explore how institutions and the system would fare under severe but plausible conditions. On this platform they are explained as tools for testing resilience, with attention to scenario choice, behavioural responses and second-round effects.
Scenario design and stress testing construct plausible, severe future conditions to examine how systems and institutions would perform. They complement probabilistic analysis where data are scarce or futures are deeply uncertain. In financial stability, risk management and systemic risk and capital markets and investment, stress tests reveal vulnerabilities that arise when several risks materialise together. They inform capital, contingency and coordination plans across sectors. The canonical description is on the STEM Commons.
Adverse scenarios set paths for growth, unemployment, rates and asset prices, with the narrative and historical calibration stated.
Banks, funds, insurers and central counterparties respond to a common shock, and their combined actions are traced to market prices.
Firms identify scenarios that would breach capital or liquidity thresholds, revealing vulnerabilities that standard scenarios miss.
The equity the system loses after interbank contagion, against the initial hit, as leverage, interconnection and recovery rates change, the core of a macroprudential stress test. Teaching model with stated illustrative values, not a prediction.
Controls
Readouts
| Round | System equity lost (%) | Banks in default |
|---|---|---|
| 0 | 18.00 | 0 |
| 1 | 28.80 | 0 |
| 2 | 35.28 | 0 |
| 3 | 39.17 | 0 |
| 4 | 41.50 | 0 |
| 5 | 42.90 | 0 |
| 6 | 43.74 | 0 |
| 7 | 44.24 | 0 |
| 8 | 44.55 | 0 |
| 9 | 44.73 | 0 |
| 10 | 44.84 | 0 |
| 11 | 44.90 | 0 |
| 12 | 44.94 | 0 |
| 13 | 44.96 | 0 |
| 14 | 44.98 | 0 |
| 15 | 44.99 | 0 |
| 16 | 44.99 | 0 |
| 17 | 45.00 | 0 |
| 18 | 45.00 | 0 |
| 19 | 45.00 | 0 |
| 20 | 45.00 | 0 |
| 21 | 45.00 | 0 |
| 22 | 45.00 | 0 |
| 23 | 45.00 | 0 |
| 24 | 45.00 | 0 |
| 25 | 45.00 | 0 |
| 26 | 45.00 | 0 |
| 27 | 45.00 | 0 |
| 28 | 45.00 | 0 |
| 29 | 45.00 | 0 |
| 30 | 45.00 | 0 |
No observed data enters this model: it runs on the teaching values set by the controls, to be replaced with a programme's own evidence.
Across the six pillars, led by Nexus Consortium
Datasets and records used by scenario design and stress testing on this platform, with the role each plays and the label its values carry. Sources are listed in the source register.
| Data | Role | Label |
|---|---|---|
| Supervisory scenarios | Shock paths | Published statistics |
| Bank and insurer balance sheets | Starting positions | Published statistics |
| Satellite models | Loss translation | MODELLED |
| NGFS scenarios | Climate pathways | MODELLED |
The exposure, loss, scenario and capital views a risk officer, supervisor or ministry of finance would ask for, with the frameworks they report against. Structures follow supervisory and actuarial practice. Values are illustrative: never prices, ratings or advice.
How a shock in scenario design and stress testing for financial stability reaches credit, market, underwriting, liquidity and operational risk, and feeds back.
Scenarios are reviewed for plausibility, internal consistency and severity relative to history. Exercise outcomes are compared with actual events when they occur.
| Check | How it is done |
|---|---|
| Severity benchmarking | Scenarios are compared with historical stress episodes |
| Model challenge | Loss models are independently reviewed and back-tested |
| Conditional framing | Results are presented as conditional on the scenario, never as forecasts |
Scenario choice can reflect prevailing assumptions and miss novel combinations. Results depend on how participants and models represent responses.
Systemic Risk Management stewards scenario design and stress testing for the Consortium and reviews how it is applied across platforms.
Reports is the Consortium's quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
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