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GRA · Private Equity Nexus

Spatial financeWhere capital meets hazard, exposure and transition

Stress testing private portfolios

Scenario design and stress testing ask how portfolio companies, funds and investors would fare under severe but plausible conditions: rate shocks, closed exit markets, physical disasters, supply failures or technology substitution. In private markets, where history is short and prices are estimated, scenarios often carry more information than statistical models.

01تۆمارکردن

Stress testing private portfolios on the record.

Method recordSTEM method
  1. ڕێگادیزاینی سیناریۆ و تاقیکردنەوەی گوشار
  2. Applied inPrivate Equity Nexus
  3. داتا4 inputs
  4. Canonical pageSTEM Commons
02بەکارهێنان

What scenario design and stress testing does here.

Scenario design and stress testing construct plausible, severe future conditions to examine how سیستەمەکان and institutions would perform. They complement probabilistic analysis where data are scarce or futures are deeply uncertain. In capital markets and investment and industry and robotics, 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.

Rate and refinancing stress

Higher rates and tighter credit are applied to each holding’s debt stack and maturity profile, with sponsor and lender actions stated, to show where liquidity and covenants fail first.

Physical event across a portfolio

A flood or heat scenario is applied to geocoded sites and key suppliers of every holding, tracing damage and downtime into earnings, insurance recoveries and covenant headroom.

Exit freeze and investor liquidity

Exits are slowed for a stated period while capital calls continue, showing how distributions, secondary sales and fund-level borrowing interact at limited partners.

03Scenario model

Transition and physical risk on a portfolio.

Three scenario families after the NGFS framework move a sector portfolio through carbon costs and warming damages; the transmission view follows the losses to lenders, investors, public finances and households. Scenario: named assumptions about the future, not a forecast.

کۆنترۆڵەکان

Carbon price at the horizon, orderly path
200 per tCO2
Delay before a disorderly transition
50% of horizon
Cost passed to customers
50%
Warming today above pre-industrial
1.30°C
Warming per decade, current policies
0.25°C
Damage coefficient
0.24% per °C²
ساڵەکانی داهاتوو
25 years

خوێندنەوەکان

Worst scenario at the horizon
−33.6% of value
ژمارە، ڕێگا و سەرچاوەکان
ساڵOrderly transition (% value)Delayed, disorderly transition (% value)Current policies (% value)
0−0.38−0.38−0.38
3−2.87−0.53−0.67
6−5.36−0.68−0.97
9−7.84−0.84−1.27
12−10.33−0.99−1.57
15−12.82−7.12−1.87
18−15.31−15.05−2.17
21−17.80−23.00−2.48
24−20.29−30.94−2.79

ڕێگاکان

  1. Climate scenario families NGFS (2023), Climate Scenarios for central banks and supervisors, Phase IV
  2. Climate stress test of the financial system Battiston and others (2017), Nature Climate Change 7
  3. Damage function Nordhaus (2017), Revisiting the social cost of carbon, PNAS 114
  4. Transmission channels BCBS (2021), Climate-related risk drivers and their transmission channels
  5. پەنجەی نادڵنیایی (مۆنتی کارلۆی پارامیتەر) Spiegelhalter, Pearson و Short (2011)، Visualising uncertainty about the future، Science 333
  6. هەستیاریی یەک-یەک (تۆرناد) Saltelli و ئەوانی دیکە (2008)، Global Sensitivity Analysis: The Primer، Wiley

داتا

The model runs on the teaching values set by the controls. To calibrate it for a place, read it against these admitted layers and series, which this page’s map can draw:

  • بەرینی شارەکان Natural Earth
  • بەندەرە دەریاییەکان Natural Earth
  • Past year, daily temperature (ERA5 via Open-Meteo) Open-Meteo.com (CC BY 4.0), Copernicus ERA5 (C3S/ECMWF) · register open-meteo.public-pages
  • Surface air temperature, daytime (AIRS) NASA AIRS · register nasa.gibs.context-live-layers
Transition and physical risk on a portfolio. Illustrative teaching model: it runs on the values set by the controls, not on measured data. Methods: Climate scenario families (NGFS (2023), Climate Scenarios for central banks and supervisors, Phase IV); Climate stress test of the financial system (Battiston and others (2017), Nature Climate Change 7); Damage function (Nordhaus (2017), Revisiting the social cost of carbon, PNAS 114).

لە ناو شەش کۆڵەکەکەدا، بە سەرپەرشتیی Nexus Consortium

04داتا

What the method consumes.

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.

داتاڕۆڵناونیشان
Supervisory scenarios (Bank of England, ECB, Federal Reserve)Severity and macro pathsئامارە بڵاوکراوەکان
NGFS climate scenariosPhysical and transition pathwaysمۆدێلکراو
Historical market episodesAnalogues for severity and timingچاودێریکراو
Portfolio company and fund dataExposures and balance sheetsREPORTED
05Exposure, loss and capital

What stress testing private portfolios means for exposure, loss and capital.

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.

Scenario pathways

How stress testing private portfolios could be stressed under the scenario families central banks and supervisors use.

OrderlyDisorderlyHot house world202520302035204020452050بەرزنزم
Scenario familyTransition riskPhysical riskWhat a stress test asks
OrderlyEarly, gradual policyنزمCan the book absorb a steady repricing?
DisorderlyLate, abrupt policyLower to mediumWhat breaks under a sudden repricing and credit migration?
Hot house worldLimited policyHigh and risingWhere do physical losses concentrate in collateral and insurance?
Scenario families as defined by the NGFS; the curves are an illustrative combined pressure index, not NGFS variables or forecasts.
NGFS climate scenarios · Network for Greening the Financial SystemIFRS S2 Climate-related Disclosures · ISSBTCFD recommendations · Financial Stability Board TCFDPrinciples for the effective management of climate-related financial risks · Basel Committee on Banking Supervision
06پشتڕاستکردنەوە

How results are checked.

Scenarios are reviewed for plausibility, internal consistency and severity relative to history. Exercise outcomes are compared with actual events when they occur.

بپشکنەHow it is done
Severity against historyEach scenario is compared with past episodes and its relative severity stated
Internal consistencyRates, spreads, valuations and exits move together in ways the scenario narrative explains
Stated management actionsSponsor, lender and investor responses are listed and tested with and without them
Reverse stress testingThe conditions that would breach a stated tolerance are identified, not only the outcome of a chosen scenario

Scenario choice can reflect prevailing assumptions and miss novel combinations. Results depend on how participants and models represent responses.

08Stewardship

Who maintains the method.

بەڕێوەبردنی مەترسیی سیستەمی stewards scenario design and stress testing for the Consortium and reviews how it is applied across platforms.

09پەیوەست

ئەو شوێنانەی ئەم لاپەڕەیە لە ناو کۆنسۆرتیۆم بۆیان دەبات.

10پرسیارەکان

پرسیار و وەڵام.

What are the limits of scenario design and stress testing in this field?
Scenario choice can reflect prevailing assumptions and miss novel combinations. Results depend on how participants and models represent responses.
How are results checked?
Scenarios are reviewed for plausibility, internal consistency and severity relative to history. Exercise outcomes are compared with actual events when they occur.
Are the values on this page real?
The data names, roles and checks are real descriptions of practice. The canvas shows a design of the method’s use, not a run; no result is reported here.
Where else is this method applied?
ئەو canonical method page lists every platform that applies it.
Reportsبەشداربە

لەم لاپەڕەیەوە بەڵگە پێشکەش بکە.

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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