Glossary term
Advanced Measurement Approach
The advanced measurement approach was a Basel II operational risk capital method that allowed approved banks to use internal models to estimate operational risk capital.
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What Is the Advanced Measurement Approach?
The advanced measurement approach, or AMA, was a Basel II operational risk capital method that allowed approved banks to use internal models to estimate operational risk capital. It was intended for sophisticated institutions with strong data, modeling, and risk-management systems.
The AMA is now mostly important as a legacy concept. Basel reforms moved away from multiple operational risk approaches and toward a single standardised measurement-style framework in order to simplify the regime and improve comparability.
Key Takeaways
- AMA was an internal-model approach for operational risk capital.
- It required supervisory approval and strong risk-management infrastructure.
- It used internal and external loss data, scenario analysis, and control assessments.
- Basel reforms moved away from AMA toward a simpler standardised operational risk framework.
- The term still appears in historical Basel, operational risk, and bank-capital discussions.
How AMA Worked
Under the AMA, a bank estimated operational risk capital using its own approved measurement system. Operational risk includes losses from failed processes, people, systems, external events, legal risk, fraud, cyber events, processing errors, and similar non-credit, non-market failures.
For example, a large bank might model loss frequency and severity using internal loss history, external industry loss data, business environment factors, scenario analysis, and control assessments. The resulting capital estimate would depend heavily on the bank's model and supervisory approval.
Why Basel Moved Away From It
The appeal of AMA was risk sensitivity. The drawback was complexity and lack of comparability. Different banks could produce materially different capital outcomes because of different data, modeling choices, scenarios, and assumptions.
Post-crisis Basel reforms sought to reduce excessive variability in capital calculations. Operational risk was one area where the framework moved toward a more standardised method rather than continuing to rely on many internal model systems.
AMA Versus Standardised Approaches
Approach | Main idea |
|---|---|
Advanced measurement approach | Bank-specific internal model for operational risk capital, subject to approval. |
Standardised operational risk framework | Formulaic approach designed to be simpler and more comparable. |
How to Read the Term Today
When AMA appears in older documents, it usually signals the pre-reform era of operational risk modeling. The term helps explain why later Basel reforms emphasized simplicity, comparability, and limits on model variability.
It should not be confused with a current universal permission to model operational risk capital however a bank chooses. The live rule position depends on jurisdiction and implementation timing.
AMA also shows the tension between risk sensitivity and comparability. A model tailored to a bank's own loss history may capture details a simple formula misses, but it can also make capital requirements harder for outsiders to compare across banks.
The Bottom Line
The advanced measurement approach was a Basel II internal-model method for operational risk capital. Its legacy is important because it explains why later reforms shifted toward more standardised, comparable operational risk capital rules.