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STEM foundation

STEM foundation of Sovereign Capital Nexus

The science, technology, engineering and mathematics Sovereign Capital Nexus rests on. Each method has a canonical page in the STEM Commons, hosted by GCRI, and a page here on how it is applied in this field.

Open Financial economics for sovereign balance sheets Back to Sovereign Capital Nexus
Sovereign Capital NexusRegister
  1. 01MethodFinancial economics for sovereign balance sheets
  2. 02MethodEconomics of public wealth
  3. 03MethodDecision analysis for sovereign choices

GRA · Established · service level R0

01In brief

The short answer.

The Sovereign Capital Nexus STEM foundation is the set of canonical methods its findings depend on, from financial economics and macro-finance to decision analysis under uncertainty. Each method has a canonical STEM Commons page and a page here on its use in the sovereign and public finance field.

02Canvas

Methods feeding this platform.

Canvas · methods feeding this platformDesign, not a record
STEM foundation of Sovereign Capital Nexus: asset-liability managementLiabilities are projected; a strategic asset allocation and risk budget are set; hedges and liquidity buckets cover collateral calls; stress tests check funding; rebalancing and stewardship follow. Design of the process, not a record of a run.

Fig.The methods this platform draws on and what each one feeds. Design, not a record.

03Geography

Activity and exposure in the Gulf.

Night-time lights and population, a proxy for economic activity, with the floods and fires that put assets at risk, framed on the Gulf; each layer is a dated NASA product.

The interactive map needs JavaScript; the layer list and sources are below.

Layers 2

Activity and exposure

Latest available

NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Natural Earth

Loading the latest NASA imagery.

Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.

Night-time lights and population, a proxy for economic activity, with the floods and fires that put assets at risk, framed on the Gulf.Satellite and model products as NASA publishes them, each with its own date; indicators, not assessments of any place; claim ceiling INTEGRATED.

Data: NASA GIBS · ASTER GDEM · Natural EarthSources and licences

  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS Black Marble night-time lights, NASA Goddard Space Flight Center; distributed by the NASA Level-1 and Atmosphere Archive and Distribution System (LAADS DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Center for International Earth Science Information Network (CIESIN), Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Licensed under CC BY 4.0. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). CC BY 4.0
  • VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • NASA Fire Information for Resource Management System (FIRMS), VIIRS 375 m active fire product, NASA LANCE; vector tiles via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
  • Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.

Layers and dates

  • Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026
  • Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static
  • Flood water, 3-day composite: VIIRS Global Flood Product, NASA LANCE · 14 Oct 2026
  • Active fires and thermal anomalies, last day: VIIRS NOAA-20 375 m (FIRMS), NASA LANCE FIRMS · 13 Oct 2026
  • Land surface temperature, day, 8-day composite: VIIRS NOAA-20 Level 3, 8-day, NASA LANCE · 14 Sep 2026

04Methods

The methods behind the field.

  1. Financial economics and macro-financeSovereign asset and liability analysis · Sovereign, bank and enterprise feedbackSteward · Financial StabilityApplied here
    Canonical · STEM Commons
  2. Economics and development economicsPermanent income and fiscal sustainability · Dutch disease and absorptive capacitySteward · Economic DevelopmentApplied here
    Canonical · STEM Commons
  3. Decision analysis under uncertaintyDisaster risk layering choices · Robust fiscal and fund rules · Mandate trade-offs for boardsSteward · Systemic Risk ManagementApplied here
    Canonical · STEM Commons
05Methods

The STEM methods Sovereign Capital Nexus applies, and why.

Each Sovereign Capital Nexus method is described once in the STEM Commons at GCRI and applied here to the public balance sheet under joint shocks.

06Why it matters

Grounding makes claims checkable.

When a finding names the methods it depends on, a reader can see its assumptions and limits, and an expert in that method can challenge it.

07Key terms

Terms used on this page.

Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.

TermDefinition
STEM CommonsThe shared reference of science, technology, engineering and mathematics methods for the Nexus network, hosted by GCRI, with one canonical page per method and a named steward platform.
Steward platformThe platform that maintains the canonical description of a method in the STEM Commons and reviews how other platforms apply it.
Financial economics and macro-financeFinancial economics and macro-finance study how asset prices, credit and financial institutions interact with the real economy.
Economics and development economicsEconomics and development economics study how societies produce, distribute and consume resources and how living standards change.
08Sources

Where this page's references lead.

The bodies and documents this page is read against. Status and editions change; each link goes to the issuing body.

09Pages

Pages in STEM foundation of Sovereign Capital Nexus.

Method

Financial economics for sovereign balance sheets

Method

Economics of public wealth

Method

Decision analysis for sovereign choices

10Questions

Questions and answers.

What is a steward platform?
The platform that maintains the canonical description of a method and reviews how it is applied across the Consortium.
Related

Around Sovereign Capital Nexus.

Sovereign Capital Nexus

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