SR 11-7 - Model Risk Management Guidance

Routing Summary

This folder covers the Federal Reserve / OCC Supervisory Guidance on Model Risk Management (SR Letter 11-7, April 4, 2011; 21 pp.), section by section, plus a generic application to marketing analytics. Contains 10 notes spanning the model and model-risk definitions, effective challenge, development and use standards, validation (independence, the pre-use gate, conceptual soundness, ongoing monitoring, outcomes analysis/back-testing, vendor models) and governance (board, policies, roles, internal audit, external resources, inventory, documentation).

Concept Map

ConceptNoteTypeDepends OnKey Result
Two costs of modelsSR 11-7 - Model Risk Management Guidance - Overviewdefinition—direct (build) vs indirect (bad decisions) costs (p. 1)
Proportionality / materialitySR 11-7 - Model Risk Management Guidance - Overviewprinciple—rigor commensurate with exposure, complexity, extent of use (pp. 2, 5)
Model (3 components)SR 11-7 - Model Definition, Model Risk and Effective Challengedefinition—input, processing, reporting; judgmental inputs included (p. 3)
Model quality dimensionsSR 11-7 - Model Definition, Model Risk and Effective Challengedefinitionmodelaccuracy for forecasts, discriminatory power for rankings (p. 3)
Model risk (2 sources)SR 11-7 - Model Definition, Model Risk and Effective Challengedefinitionmodelfundamental error; incorrect/inappropriate use (pp. 3-4)
Aggregate model riskSR 11-7 - Model Definition, Model Risk and Effective Challengedefinitionmodel riskshared data/assumptions/methods correlate failures (p. 4)
Effective challengeSR 11-7 - Model Definition, Model Risk and Effective Challengedefinition—incentives + competence + influence (p. 4)
Development standardsSR 11-7 - Model Development, Implementation and Usestandardmodelpurpose, theory, alternatives, data, testing (pp. 5-7)
No single test sufficesSR 11-7 - Model Development, Implementation and Useprincipletestingapply a variety of tests (p. 6)
User-challenge asymmetrySR 11-7 - Model Development, Implementation and Useprincipleeffective challengeusers rarely challenge favourable outcomes (p. 7)
Conservatism must be demonstratedSR 11-7 - Model Development, Implementation and Useprinciplemodel uncertaintyextreme point of a misspecified distribution is not conservative (p. 8)
Model validation; independenceSR 11-7 - Validation Independence, Validation Gate and Periodic Reviewdefinitioneffective challengeno stake in verdict; judged by actions and outcomes (p. 9)
Validation gateSR 11-7 - Validation Independence, Validation Gate and Periodic Reviewrule / algorithmvalidationdeficiencies → no use, tight constraints, or rejection (p. 10)
Annual review; error thresholdsSR 11-7 - Validation Independence, Validation Gate and Periodic Reviewstandardvalidationat least annual; redevelop if outcomes consistently outside range (p. 10)
Three core elementsSR 11-7 - Validation Independence, Validation Gate and Periodic Reviewdefinitionvalidationsoundness, monitoring, outcomes (p. 11)
Conceptual soundnessSR 11-7 - Conceptual Soundness, Sensitivity Analysis and Stress Testingdefinitionthree elementsreview developmental evidence, alternatives, assumptions by impact (p. 11)
Sensitivity analysis; stress testingSR 11-7 - Conceptual Soundness, Sensitivity Analysis and Stress Testingdefinitionconceptual soundnesssmall changes → expected range; extremes → boundaries (p. 11)
Process verificationSR 11-7 - Ongoing Monitoring, Process Verification, Overrides and Benchmarkingdefinitionongoing monitoringinputs, code change control, spreadsheets, reports (p. 12)
Override analysisSR 11-7 - Ongoing Monitoring, Process Verification, Overrides and Benchmarkingdefinitionongoing monitoringhigh or helpful overrides → redevelop (p. 13)
BenchmarkingSR 11-7 - Ongoing Monitoring, Process Verification, Overrides and Benchmarkingdefinitionongoing monitoringbenchmark is an alternative prediction; beware false comfort (p. 13)
Outcomes analysis; parallel analysisSR 11-7 - Outcomes Analysis and Back-Testingdefinitionthree elementsrange of tests; adjusted model must beat original (pp. 13-14)
Back-testingSR 11-7 - Outcomes Analysis and Back-Testingdefinitionoutcomes analysisout-of-development period, horizon-matched; holdout is not a substitute (p. 14)
VaR back-testSR 11-7 - Outcomes Analysis and Back-Testingexampleback-testingfrequency + clustering + other percentiles (pp. 14-15)
Limited back-testing ruleSR 11-7 - Outcomes Analysis and Back-Testingruleback-testingmore scrutiny of limitations; inform senior management (p. 15)
Vendor model validationSR 11-7 - Validation of Vendor and Third-Party Modelsrulethree elementsvalidate own use; sensitivity + benchmarking; own outcomes (pp. 15-16)
Board, policies, rolesSR 11-7 - Governance Roles, Policies, Internal Audit and External Resourcesstandardeffective challengeowner accountable; control staff can restrict use (pp. 16-19)
Internal audit; external resourcesSR 11-7 - Governance Roles, Policies, Internal Audit and External Resourcesstandardrolesaudit evaluates, does not duplicate; internal party evaluates external work (pp. 19-20)
Model inventorySR 11-7 - Model Inventory and Documentation Standardsdefinitiongovernancefirm-wide; variants as separate entries; 12 fields (p. 20)
Documentation; validation reportsSR 11-7 - Model Inventory and Documentation Standardsdefinitiongovernanceunderstandable by unfamiliar parties; executive summary (p. 21)
Marketing applicationSR 11-7 - Applying Model Risk Management to Marketing Analyticsapplicationall abovegate + pre-registered criteria + known-truth simulation + experiment benchmarks

Notes

  • SR 11-7 - Model Risk Management Guidance - Overview — CONTAINS: document metadata; two costs of models (^def-two-costs); proportionality (^def-proportionality); §I intro, fn. 1, §II purpose and scope, fn. 2 prior guidance, §VII conclusion; framework diagram; full Source Map; lifecycle example.
  • SR 11-7 - Model Definition, Model Risk and Effective Challenge — CONTAINS: model definition (^def-model) and listed uses; fn. 3; model quality dimensions (^def-model-quality); model risk two sources (^def-model-risk); limitations; drivers and aggregate model risk (^def-aggregate-model-risk); effective challenge (^def-effective-challenge); residual-risk tools and informed conservatism (^thm-model-risk-not-eliminable); materiality and three pillars; examples “is it a model?” and two sources of risk.
  • SR 11-7 - Model Development, Implementation and Use — CONTAINS: §IV intro; fn. 4; development requirements (^def-development-requirements); data quality/proxies (^def-data-standard); testing standard (^def-testing-standard); no single test (^thm-no-single-test); judgmental adjustments; systems integration; model use; user-challenge asymmetry (^thm-user-challenge-asymmetry); reports; model uncertainty (^def-model-uncertainty); fn. 5; conservatism (^thm-conservatism-must-be-demonstrated); development checklist and asymmetric-challenge examples.
  • SR 11-7 - Validation Independence, Validation Gate and Periodic Review — CONTAINS: validation definition and scope (^def-model-validation); independence (^def-validation-independence); incentives/competence/influence table; validation gate (^thm-validation-gate) and decision algorithm (^alg-validation-gate); ongoing validation and annual review (^def-ongoing-validation); error thresholds (^def-error-thresholds); three core elements (^def-three-elements); examples.
  • SR 11-7 - Conceptual Soundness, Sensitivity Analysis and Stress Testing — CONTAINS: conceptual soundness (^def-conceptual-soundness, ^def-conceptual-soundness-scope); sensitivity analysis (^def-sensitivity-analysis) with formal reading; stress testing (^def-stress-testing); plan for results (^thm-plan-for-results); qualitative judgment; collinearity and boundary examples.
  • SR 11-7 - Ongoing Monitoring, Process Verification, Overrides and Benchmarking — CONTAINS: ongoing monitoring (^def-ongoing-monitoring); process verification six components (^def-process-verification); repeated tests and monitored limits; override analysis (^def-override-analysis); benchmarking (^def-benchmarking); override and spreadsheet examples.
  • SR 11-7 - Outcomes Analysis and Back-Testing — CONTAINS: outcomes analysis (^def-outcomes-analysis); range of tests (^thm-range-of-tests); parallel outcomes analysis (^def-parallel-outcomes); back-testing (^def-backtesting) formalised; VaR example (^ex-var-backtest); test the model (^thm-test-the-model); early warning (^def-early-warning); predetermined thresholds (^thm-predetermined-thresholds); limited back-testing (^thm-limited-backtesting); quarterly-forecast and parallel-analysis examples.
  • SR 11-7 - Validation of Vendor and Third-Party Models — CONTAINS: vendor obligations (^def-vendor-obligations); validate own use (^thm-validate-own-use); in-house knowledge and contingency (^def-vendor-contingency); related §VI requirements; black-box validation table; vendor tool example.
  • SR 11-7 - Governance Roles, Policies, Internal Audit and External Resources — CONTAINS: §VI intro; board and senior management (^def-board-senior-mgmt); policies (^def-policies) and checklist (^alg-policy-checklist); ownership/controls/compliance roles (^def-roles); internal audit (^def-internal-audit); external resources (^def-external-resources); small-team role mapping example.
  • SR 11-7 - Model Inventory and Documentation Standards — CONTAINS: model inventory definition (^def-model-inventory); inventory field table (^tbl-inventory-fields); documentation standard (^def-documentation-standard); who documents (^def-who-documents); validation reports (^def-validation-report) and template (^alg-validation-report); inventory example for regional model family.
  • SR 11-7 - Applying Model Risk Management to Marketing Analytics — CONTAINS: why attribution is a hard case; 16-row element mapping table; three governance devices (gate, pre-registered criteria, known-truth simulation); generic red flags; MMM acceptance protocol example; override example.

Sources

  • Federal Reserve and OCC 2011 - Supervisory Guidance on Model Risk Management (SR 11-7) — SR Letter 11-7 Attachment, Board of Governors of the Federal Reserve System and OCC, April 4, 2011 (all notes).

See Also