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The Global Risks Index

The Global Risks Index · Methodology 1.0.0-draft

One grammar, seven instruments

Indicators to domains to pillars to composite, with intervals, classes, coupling, forecasts, scenarios, tails and a separate perception layer. Every method on this page runs in your browser on numbers you choose.

Page GRX-MTHEdition Baseline Edition 2026Evidence close 2026-09-30Method 1.0.0-draftValues not yet publishedMethod v1.0.0-draft
FIG 1 · The risk chain
HazardExposureVulnerabilityImpactLikelihoodRiskCapacityResponseFinancingOutcome
Muito baixo0.0 a < 2.0
Baixo2.0 a < 3.5
Médio3.5 a < 5.0
Alto5.0 a < 6.5
Muito alto6.5 a 10.0
Every indicator sits on the chain; every value lands in a class with its probability.
451
definições de indicadores
106
composites
7
instruments
1,000
draws per value

01Princípios

Eight principles

P1

Uma família de índices, não uma pontuação monolítica

NXS-GRX (dados canônicos, proveniência e risco) publica vinte índices de domínio, quatro índices de pilar, um composto e seis instrumentos. O composto nunca aparece sem todos os pilares e domínios ao seu lado, e nenhuma dimensão independente é agregada de forma silenciosa.

P2

Classes com intervalos, nunca rankings

Cada valor traz um intervalo de 90% obtido por análise de Monte Carlo sobre normalização, pesos, imputação e agregação. Os países são colocados em classes de risco com uma probabilidade de classe declarada; as páginas listam os países por nome ou código, nunca por valor.

P3

Ausência de dados não é zero

Um dado de entrada em falta é mostrado como em falta, um dado imputado é sinalizado e um valor é retido quando a cobertura fica abaixo do mínimo do método. Um perfil vazio, uma fonte indisponível e um zero observado são apresentados de forma diferente.

P4

Cada valor remete à sua fonte

Cada valor traz sua versão de origem, licença, hora de obtenção, versão do método e cadeia de transformação (W3C PROV). Uma correção em qualquer ponto se propaga a todos os valores dependentes e é registrada publicamente.

P5

O medido, o modelado e o percebido são mantidos separados

Os glifos de status separam entradas observadas, informadas, estimadas, inferidas, previstas, simuladas, de cenário e de especialistas. Os sinais de percepção formam seu próprio instrumento e nunca são misturados ao risco medido.

P6

Sistêmico por construção

O risco isolado e o risco ajustado pelo acoplamento são apresentados lado a lado, a partir de redes tipadas de dependência em comércio, finanças, energia, alimentos, infraestrutura e informação.

P7

Controlado por licença e reprodutível

Uma fonte entra em um valor público somente quando sua licença admite esse uso; valores retidos são contabilizados, não ocultados. Métodos, caminhos de código, sementes e resumos criptográficos são publicados por versão, para que qualquer valor possa ser recalculado.

P8

Informação, não autoridade

O NXS-GRX é informação de pesquisa e de análise de risco. Não é uma classificação de risco (rating), uma classificação oficial, um alerta, um índice de referência nem uma recomendação, e nunca decide por uma instituição.

02Cadeia de processamento

Da fonte ao perfil

Every indicator declares its place on the risk chain and its polarity, so aggregation never mixes directions silently.

computation

The NXS-GRX pipeline, from source to profile

Graph24 nodes
Grafo
01Fontes
02Harmonise
03Indicadores
04Sub-indices
05Domínios
06Pilares
07Composite and instruments
08Produtos

100%
Índice
  1. Fluxos de eventos

    SOURCES · SOURCES · near real time
    Admitted alert, Earth-observation, conflict-event, price and market streams for the Pulse instrument.
  2. 205 fontes registradas

    SOURCES · SOURCES · licence-gated
    Every source is registered with its licence; nothing enters a public value its licence does not admit.
  3. Famílias de cenários

    SOURCES · SOURCES · labelled
    Socio-economic and warming pathways and transition families, used as labelled scenario structures.
  4. Pesquisas e elicitação

    SOURCES · SOURCES · perception
    Consulta estruturada a especialistas e inquéritos públicos, mantidos separados do risco medido.
  5. Rede de dependências

    NETWORK · NETWORK · six layers
    Ligações de comércio e insumo-produto, finanças e dívida, energia, comércio de alimentos, infraestrutura e informação.
  6. Séries harmonizadas

    HAR · HAR · units, areas, time
    Source series mapped to Nexus concepts and code lists; units, areas and frequency aligned; no imputation.
  7. 451 indicadores

    IND · IND · Indicator Standard
    Native indicators with definitions, units, polarity, levels and crosswalks; flagged imputation only here.
  8. 86 subíndices

    SUB · SUB · normalised
    Componentes normalizados, ponderados e agregados dentro de cada domínio.
  9. 20 índices de domínio

    IDX · IDX · 1,000 draws
    Vinte índices de domínio com intervalos de Monte Carlo e análise de sensibilidade.
  10. Pontuação de acoplamento sistêmico

    COUPLING · COUPLING · S
    Contágio na rede de dependências: DebtRank, compensação e cascatas de limiar.
  11. Exposição a ameaças

    PILLAR · PILLAR · HTE
    What can strike, how often, how hard and who and what stands in its way?
  12. Vulnerabilidade humana e dos sistemas

    PILLAR · PILLAR · VUL
    How susceptible are people, livelihoods, ecosystems and essential systems to harm when a shock arrives?
  13. Fragilidade macrofinanceira e estrutural

    PILLAR · PILLAR · MSF
    How much fiscal, financial, external, digital and technological room does the system have before stress turns into crisis?
  14. Falta de capacidade de enfrentamento e de adaptação

    PILLAR · PILLAR · LCC
    Can institutions anticipate, absorb, respond, recover and adapt?
  15. Pulse

    INSTRUMENT · INSTRUMENT · weekly
    Nowcast anomaly against each country’s own history.
  16. Perspectiva

    INSTRUMENT · INSTRUMENT · 1 to 36 months
    Probabilidades de eventos calibradas com quadros de verificação.
  17. Cauda

    INSTRUMENT · INSTRUMENT · exceedance
    Exceedance curves, return-period losses, catastrophic register.
  18. Trajetórias

    INSTRUMENT · INSTRUMENT · to 2100
    Fan charts under named scenario families.
  19. Percepção

    INSTRUMENT · INSTRUMENT · separate
    Gravidade percebida e a lacuna de percepção.
  20. NXS-GRX risco composto

    COMPOSITE · COMPOSITE · geometric
    Composite = (HTE × VUL × MSF × LCC)^(1/4), each pillar on 0–10 floored at 0.1; pillar = expert-weighted geometric mean of its domain indices
  21. 195 perfis de países

    PROFILES · PROFILES · classes, intervals
    Cada domínio, pilar e instrumento por país, nunca classificados.
  22. 54 índices de séries

    SERIES · SERIES · global to technology
    Índices especializados a partir dos mesmos índices de domínio.
  23. API, blocos e arquivos em lote

    ACCESS · ACCESS · machine
    Public cut, SDMX keys, vector tiles, bulk files.
  24. NXS-GRX risco acoplado

    COMPOSITE · COMPOSITE · × (1 + κ·S)
    Coupled = Composite × (1 + κ·S), S = systemic coupling score in [0,1] from the dependency network, κ disclosed per release (baseline κ = 0.25); reported beside the standalone composite, never instead of it
Não executadoEm cursoConcluído
FIG 2. Select a stage to trace it; Simulate run plays the pipeline in order. Every stage keeps provenance, so a correction at a source reaches every value that depends on it. Schematic of the construction; source: Indicator Standard composite definitions.
HazardExposureVulnerabilityImpactLikelihoodRiskCapacityResponseFinancingOutcome
03Pilares

Pillars and domain indices

Pillar values are expert-weighted geometric means of their domain indices (equal weights in the baseline, recorded per release); a pillar needs two thirds of its domains, otherwise it is withheld.

HTE · Exposição a ameaças e perigos

VUL · Vulnerabilidade humana e dos sistemas

MSF · Fragilidade macrofinanceira e estrutural

LCC · Falta de capacidade de enfrentamento e de adaptação

04Composto

Composite and coupled composite

The composite never appears alone: profiles show each pillar and domain beside it.

Composto
Composite = (HTE × VUL × MSF × LCC)^(1/4), each pillar on 0–10 floored at 0.1; pillar = expert-weighted geometric mean of its domain indices
Composto acoplado
Coupled = Composite × (1 + κ·S), S = systemic coupling score in [0,1] from the dependency network, κ disclosed per release (baseline κ = 0.25); reported beside the standalone composite, never instead of it
Incerteza
1,000 Monte Carlo runs over normalisation, weights, imputation, aggregation (geometric, arithmetic, Mazziotta–Pareto); 90% intervals; Sobol first-order and total-order indices per release
Cobertura
Each pillar needs two thirds of its domain indices; otherwise the composite is withheld and the pillar shown alone
FIGURA 3 · Simulador: dos quatro pilares ao composto e ao composto acoplado
Pilares (0 a 10)
4.2
5.1
3.6
4.8
Acoplamento e incerteza
0.4
0.25
0.4
–
funciona no seu navegador

Simulador: Composto = (HTE × VUL × MSF × LCC)^¼, com cada pilar com piso de 0.1; Acoplado = Composto × (1 + κ·S). As simulações variam pesos, agregação e entradas. As posições são pontos de partida, não valores NXS-GRX. Simulado com suas próprias entradas; não é um resultado medido.
05Classes

Classes and intervals, never league tables

A class is printed with its probability (share of Monte Carlo draws inside the class). Below 60% the adjacent class is printed too (for example High, 54% · Very high, 41%). Fixed bounds keep classes comparable across editions; intervals show when two countries cannot be told apart. Lists are ordered by name or code.

Muito baixo0.0 a < 2.0
Baixo2.0 a < 3.5
Médio3.5 a < 5.0
Alto5.0 a < 6.5
Muito alto6.5 a 10.0
06Construction

Ten construction steps

The steps follow the OECD/JRC handbook on composite indicators and the statistical audit practice of the JRC Competence Centre on Composite Indicators, referenced for method only.

Theoretical framework Risk chain from hazard to outcome; four pillars; twenty index domains; explicit polarity and risk component for every indicator.
Data selection indicator definitions with SDMX-compatible keys, crosswalks to source code lists, evidence class A–E and the licence register.
Missing data Flagged imputation only at IND layer (dimension mean, indicator median, multiple imputation); modelled share capped per composite; coverage minimum two thirds.
Multivariate analysis Correlation structure, principal components and Cronbach’s alpha per sub-index; incoherent components are re-specified before release.
Normalisation Min–max with fixed goalposts, percentile rank or identity on native 0–10 scales; skew and kurtosis treatment (winsorisation, log) above |skew| 2 and kurtosis 3.5.
Weighting and aggregation Equal or expert weights recorded per composite; geometric, arithmetic, Mazziotta–Pareto, product or geometric-complement aggregation as each definition declares; floor 0.1 before geometric means.
Uncertainty and sensitivity At least 1,000 Monte Carlo runs over the declared alternatives; 90% intervals, class probabilities and Sobol indices published with every release.
Back to the data Driver decomposition to indicator level; every value opens to its inputs, sources and transformation chain.
Links to other indicators Published crosswalks and correlation checks against established indices, used as validity evidence, never as inputs to be re-weighted.
Visualisation and dissemination Classes and intervals, never league tables; machine access through API, SDMX keys, tiles and bulk files; corrections and versions public.
07Release

One edition, run as a workflow

An edition is a run: the evidence cut freezes, sources pass the licence gate, 451 indicators are computed for 195 profiles, 1,000 draws give the intervals, and two approval gates stand before anything is published.

on: evidence cut

Execução da publicação da edição

In progressTriggered by NXS-GRX run service13 jobs2 approval gates6 matrix jobs

Grafo
01Cut
02Ingest
03Ingest
04Indicadores
05Índices
06Índices
07Índices
08Incerteza
09Incerteza
10Análise
11Análise
12Publicar

100%
Linha do tempo
Job0 d5 d10 d15 d20 dTarget
Evidence cut frozenNXS-GRX run service1 h
Licence gateLicence register1 h
HarmoniseNXS-GRX run service6 h
IndicatorsNXS-GRX run service4 h
Sub-indicesNXS-GRX run service1 h
Domain indicesNXS-GRX run service1 h
Coupling scoreNXS-GRX run service2 h
1,000 Monte Carlo drawsMonte Carlo engine3 h
Intervals, classes, SobolMonte Carlo engine1 h
Statistical auditIndependent reviewer10 d
Steward reviewStewards10 d
Profiles and seriesFoundry2 h
Tiles and bulk filesFoundry2 h

End to end on the longest path: about 20.9 d of proposed target service levels. Gates wait for the people named; bars with a fading end have no fixed length.

Etapas
  1. Evidence cut frozen

    Cut · NXS-GRX run service · 1 hour
    Input vintages pinned
    Serviço de execução NXS-GRXRegistro PostgreSQL (segurança em nível de linha)
  2. Controle de licença

    Ingest · Licence register · 1 hour
    Admitted, isolated or withheld
    Registro de licenças
  3. Harmonise matrix · 150 sources

    Ingest · NXS-GRX run service · 6 hours
    Units, areas, time
    Serviço de execução NXS-GRXpadrão de indicadores
  4. Indicators matrix · 451 × 195

    Indicators · NXS-GRX run service · 4 hours
    Derivations, flagged imputation
    Serviço de execução NXS-GRXpadrão de indicadores
  5. Sub-indices matrix · 86

    Indices · NXS-GRX run service · 1 hour
    Normalise, weight, aggregate
    Serviço de execução NXS-GRXNúcleos de modelos testados
  6. Domain indices matrix · 20

    Indices · NXS-GRX run service · 1 hour
    Vinte índices temáticos
    Serviço de execução NXS-GRXNúcleos de modelos testados
  7. Coupling score

    Indices · NXS-GRX run service · 2 hours
    DebtRank, clearing, cascades
    Rede de dependênciasNúcleos de modelos testados
  8. 1,000 Monte Carlo draws matrix · 1,000

    Uncertainty · Monte Carlo engine · 3 hours
    Weights, normalisation, aggregation, imputation
    Motor Monte Carlo
  9. Intervals, classes, Sobol

    Uncertainty · Monte Carlo engine · 1 hour
    90% intervals · Class probabilities · Sensitivity
    Motor Monte Carlo
  10. Statistical audit approval

    Review · Independent reviewer · 10 days
    Coherence, stability
    Núcleos de modelos testados
  11. Steward review approval

    Review · Stewards · 10 days
    Method, evidence, public-safe screen
    Registro PostgreSQL (segurança em nível de linha)
  12. Profiles and series matrix · 195 + 59

    Publish · Foundry · 2 hours
    Published with intervals
    Public cut APINS-1 UNI catalogue
  13. Tiles and bulk files

    Publish · Foundry · 2 hours
    ISO3, ADM1, ADM2, H3 · Deposit with DOI
    Blocos vetoriaisDepósito no Zenodo
Artefatos
Artefato Tarefa Quem Etapa
Cut record Evidence cut frozen Serviço de execução NXS-GRX Cut
Withheld counts Controle de licença Registro de licenças Ingest
HAR series Harmonise Serviço de execução NXS-GRX Ingest
IND values Indicadores Serviço de execução NXS-GRX Indicadores
SUB values Sub-indices Serviço de execução NXS-GRX Índices
IDX values Índices de domínio Serviço de execução NXS-GRX Índices
S per country Coupling score Serviço de execução NXS-GRX Índices
Draw set with seed 1,000 Monte Carlo draws Motor Monte Carlo Incerteza
Uncertainty report Intervals, classes, Sobol Motor Monte Carlo Incerteza
Audit note Statistical audit Independent reviewer Análise
Release decision Steward review Guardiões Análise
Edição Profiles and series Foundry Publicar
Blocos Tiles and bulk files Foundry Publicar
DOI Tiles and bulk files Foundry Publicar
ConcluídoEm cursoAguardando aprovaçãoNa filaEtapa de controle de aprovaçãoTarefa matricialVocê está aqui
From the evidence cut to published profiles, tiles and API: every stage keeps provenance and two review gates stand before release. The canvas shows where a request stands at the marked job; it is illustrative, not the status of a real request. Durations are proposed target service levels. Select a job for its steps, the people who act, the technology it runs on and what it produces.
08Aggregation

Five aggregation shapes

Try them on the fiscal and public debt index: switch the aggregation and watch the class and interval move.

Aggregation O que faz Domain indices using it
geometric Weighted geometric mean after a floor of 0.1: partial compensation, so weakness in one component cannot be fully offset by strength in another. Risco fiscal e da dívida pública · Ameaça física climática · Risco de segurança hídrica · Risco de segurança sanitária · Vulnerabilidade socioeconômica · Risco de segurança energética · Fragilidade da infraestrutura · Risco cibernético · Falta de capacidade de enfrentamento
Mazziotta–Pareto Mean adjusted by the spread across components (non-compensatory): unbalanced profiles read as riskier than balanced ones with the same mean. Risco de estabilidade financeira · Risco de insegurança alimentar · Risco de conflito
arithmetic Weighted arithmetic mean: full compensation, used where components are substitutes. Risco de dependência externa · Exposição à transição climática · Pressão ambiental · Pressão de deslocamento · Fragilidade da governança · Risco de concentração tecnológica
geometric complement Complement of the geometric mean of complements: any single high exposure lifts the index, as for multi-hazard exposure. Exposição multiameaças
product Product of normalised components: risk exists only where all components are present, as for space-weather exposure. Exposição ao clima espacial
FIG 4 · Simulator: aggregate fiscal and public debt risk on your numbers
Components (0 to 10)
3.0
5.0
7.0
4.0
6.0
3.0
5.0
25
1
–
funciona no seu navegador

Contribution of each component (leave one out)
Simulator: the index’s published aggregation run on numbers you set, with 1,000 draws over weights and aggregation. The slider positions are starting points for the explainer, not NXS-GRX values. Simulated on your own inputs; not a measured result.
09Missing data

Ausência de dados não é zero

Imputation happens only at the indicator layer and is always flagged: dimension mean, indicator median or multiple imputation, as each definition declares. Each composite caps the share of its weight that may rest on modelled or imputed inputs and withholds its value below its coverage minimum. Coverage is published as a vector per country and indicator, never as a single complete flag; fragile and small-island states are where gaps cluster, so their coverage is shown first.

10Situação

Status and value states

Glifo Situação Médias
● OBSERVADO Medido diretamente e publicado pela fonte
□ DECLARADO Informado ou declarado por um editor, não medido de forma independente
◆ ESTIMADO Estimado ou modelado por um método declarado
▲ INFERIDO Inferido a partir de sinais relacionados
◇ PREVISÃO Afirmação probabilística sobre um período futuro
◈ SIMULADO Resultado de uma simulação ou de um conjunto de eventos estocásticos
○ CENÁRIO Condicional a um cenário nomeado, não uma previsão
◎ CONTRIBUIÇÃO DE ESPECIALISTAS Julgamento estruturado de especialistas
Value state Médias
PUBLISHED Publicado em uma edição com intervalo, classe e fontes
NO_DATA Nenhuma entrada admitida; não é zero
INSUFFICIENT_EVIDENCE Cobertura abaixo do mínimo do método; valor retido
WITHHELD A licença de um dado de entrada ou o filtro de segurança pública não permite a exibição pública; contabilizado
DEGRADED Publicado com uma limitação de qualidade declarada
11Instrumento

Pulse

Questão
O que mudou desde o último corte estrutural?
Periodicidade
Estimativa semanal do presente, orientada por eventos entre as publicações
Método
Mixed-frequency dynamic factor model over admitted event streams (multi-hazard alerts, Earth observation, conflict events, prices, shipping, market stress), expressed as a standardised anomaly against each country’s own history.
Produtos
  • Pulse anomaly by domain
  • Signals for review with their sources
  • Threshold crossings for subscribers
Status of outputs
OBSERVADOINFERIDO
Pulse publishes with the first edition. Weekly anomalies by country and domain will appear here as a timeline, each signal with its sources and status.
12Instrumento

Perspectiva

Questão
Qual a probabilidade de resultados adversos definidos em um horizonte declarado?
Periodicidade
Mensal, horizontes de 1, 3, 12 e 36 meses
Método
Calibrated probabilistic ensembles (statistical, machine learning and structured expert elicitation) for defined events: conflict onset and escalation, acute food insecurity phase shifts, debt distress signals, disaster losses, displacement surges. Verified with Brier skill, reliability diagrams, ROC and CRPS against outcomes.
Produtos
  • Event probabilities with credible intervals
  • Forecast verification scorecards
  • Back-test record per model version
Status of outputs
PREVISÃO
FIG 7 · Explainer: how forecasts are verified
0.15
1.4
1
0
–
funciona no seu navegador

Explainer: 3,000 synthetic forecasts and outcomes from your settings, scored the way every Outlook model version is scored: reliability diagram, Brier score, skill against climatology and ROC area.
13Instrumento

Trajetórias

Questão
Como evolui o risco em futuros alternativos até 2030, 2050 e 2100?
Periodicidade
Cada edição anual
Método
Pillar and domain values projected under SSP × warming-level combinations and central-bank-network transition scenario families (used as labelled scenario structures), with demographic, urbanisation, governance and conflict pathways; fan charts, not point paths.
Produtos
  • Fan charts per domain and pillar
  • Scenario cascades
  • Adaptation and transition levers
Status of outputs
CENÁRIOSIMULADO
FIG 8 · Explorer: a pathway fan chart to 2100
4
0.35
0.45
10
1
–
funciona no seu navegador

Explorer: 2,000 paths from your drift, volatility and shock settings, shown as a fan chart (50% and 90% bands, median line) against the class bounds. Pathways editions project each domain under named scenario families; this explainer uses no scenario data.
14Instrumento

Cauda

Questão
Como é o extremo raro e severo da distribuição?
Periodicidade
Cada edição anual, atualizada por eventos
Método
Event loss tables and year loss tables, exceedance-probability curves, probable maximum loss at 1-in-100 and 1-in-250, expected shortfall, compound-event copulas and a register of low-probability, high-impact and global catastrophic risks.
Produtos
  • Exceedance curves and return-period losses where loss can be modelled
  • Protection-gap readings
  • Catastrophic and frontier risk register
Status of outputs
SIMULADOMODELADO
FIG 9 · Explorer: exceedance, return-period loss and the protection gap
Frequency and severity
1.2
20
1.4
One risk-transfer layer
60
240
–
funciona no seu navegador

Explorer: 20,000 simulated years from your frequency and severity settings; the exceedance curve, average annual loss, 1-in-100 and 1-in-250 annual losses, expected shortfall, and how one layer splits loss into retained, transferred and gap. Units are yours; nothing here is a modelled loss for any place.
15Instrumento

Acoplamento

Questão
Por onde o risco viaja entre sistemas e fronteiras?
Periodicidade
Cada edição anual, atualização trimestral da rede
Método
Typed multi-layer dependency network (trade and input–output, finance and debt, energy, food trade, infrastructure and digital links); contagion estimated with DebtRank, Eisenberg–Noe clearing and threshold cascades; systemic importance and exposure scores per country and system.
Produtos
  • Pontuação de acoplamento sistêmico S
  • Coupled composite beside standalone
  • Transmission paths with status and references
Status of outputs
ESTIMADOSIMULADO
FIG 10 · Expected direct couplings between systems (row affects column)
WAT ENE FOO HLT BIO FIN TRD INF DIG SEC
Água
Weak expected couplingModerate expected couplingStrong expected coupling
Schematic: the couplings the Coupling instrument expects to estimate. Strengths here are expectations from the literature the edition will cite, not estimates; each becomes ◆ ESTIMATED with its method and references in an edition.
FIG 11 · Simulator: how a shock cascades across systems
0.8
0.7
0.5
0.2
–
funciona no seu navegador

ÁguaEnergiaAlimentosSaúdeBiodiversidadeFinançasComércioInfraestruturaDigitalSegurança

Simulator: a threshold cascade on a schematic network of systems. Edge strengths are expected couplings (weak, moderate, strong), not estimates; the shock, coupling, threshold and buffers are yours. NXS-GRX estimates couplings per edition before any coupled value is published.
16Instrumento

Percepção

Questão
Onde o risco percebido difere do risco medido?
Periodicidade
Rodadas anuais de pesquisa com especialistas e o público
Método
Structured expert elicitation and public risk surveys, published as their own dimension with a perception-versus-measured gap per domain; never blended into the composite.
Produtos
  • Perceived severity by domain and horizon
  • Perception gap
  • Respondent coverage statement
Status of outputs
CONTRIBUIÇÃO DE ESPECIALISTASDECLARADO
Perception publishes with the first survey wave. Perceived severity by domain and horizon, with the perception gap against measured values.
18Validation

Validation in public

Back-testing of Structural and Outlook values against realised outcomes

Back-testing of Structural and Outlook values against realised outcomes: disaster mortality and losses, acute food insecurity phases, conflict onset and fatalities, debt distress episodes, displacement.

Forecast verification with Brier skill score

Forecast verification with Brier skill score, reliability diagrams, ROC area and CRPS, published per model version.

Independent statistical audit of each major methodology version (correlation structure

Independent statistical audit of each major methodology version (correlation structure, coherence, uncertainty and rank stability)

Golden-value tests for every kernel with hand derivations

Golden-value tests for every kernel with hand derivations, so a value can be recomputed by anyone.

Country right of reply and public correction log

Country right of reply and public correction log.

19Revisions

Revisions and corrections

Methodology carries a semantic version; a change that breaks comparability is back-cast where inputs allow, and a correction propagates to every dependent value with a public log entry.

RascunhoCalculadoVinculado a evidênciasRevisadoAprovado para publicaçãoPublicadoCorrigidoSubstituído
20Vintages

Point-in-time vintages and validation metrics

Validation follows the composite-indicator audit practice of the JRC and the early-warning literature (Kaminsky and Reinhart 1999; Alessi and Detken 2011).

Vintages

Nothing is overwritten

Every edition and every correction is a vintage with its snapshot, frozen inputs and method version. A past value stays retrievable as it was published, so any study can be rerun on the information available at the time.

Revisions

Revisions are measured

Each indicator publishes its revision record between vintages, as the mean absolute revision and its direction, so a reader can see which inputs move after first release.

Estabilidade

Rank reversal is tested

Adding or removing a country or an indicator must not reorder the others beyond the uncertainty already reported; the test is part of each edition’s uncertainty analysis.

Alerta precoce

Signals are back-tested

Forecast and trigger instruments are scored out of sample, in pseudo real time: AUROC with its interval, noise-to-signal ratio, usefulness against the cost of a missed event, and the Brier score for probabilities.

Comparability

Breaks are declared

A method change that breaks comparability is back-cast where inputs allow; otherwise the series carries a declared break and comparisons across it are refused.

Lab

Try the methods yourself

The Index Lab runs these construction and validation methods on your own numbers in the browser.

21Reproducibility

Recompute any value

Each release publishes definitions, method versions, code paths, random seeds and content digests; every kernel is tested against hand-derived golden values.

Indicator Standard
451 indicators · 106 composites · 501 crosswalks
Norma de Ameaças
14 domains · 120 families · 905 hazards · 281 HIPs 2025 hazards
model registry
670 methods in 23 fabrics
Release
Each edition is deposited with its definitions, method version and inputs, with a DOI

Formulário

Comment on the methodology

Open consultation on normalisation, weighting, aggregation, imputation, uncertainty and validation; every comment receives a disposition in the consultation record.

  1. 01PreencherOs campos marcados (obrigatório) são necessários; todo o resto ajuda na análise.
  2. 02ReferênciaVocê recebe uma referência na tela; o registro fica guardado no banco de dados WordPress deste site.
  3. 03AnáliseO resultado é registrado publicamente. Os dados de contato permanecem neste site e nunca são publicados nem compartilhados.
Form · grx-consult

Este formulário abrirá aqui assim que for ativado. Até lá, envie-o pelo gateway Nexus Reports.

Disagree with a method?

Every method comment is answered in the review record, and accepted changes are versioned and back-cast.