Risk adjusted return on capital
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Risk adjusted return on capital (RAROC) is a risk based profitability measurement framework for analysing risk-adjusted financial performance and providing a consistent view of profitability across businesses. Note, however, that more and more Risk Adjusted Return on Risk Adjusted Capital (RARORAC) is used as a measure, whereby the risk adjustment of Capital is based on the capital adequacy guidelines as outlined by the Basel Committee (currently Basel II).
Broadly speaking, in business enterprises, risk is traded off against benefit. RAROC is defined as the ratio of risk adjusted return to economic capital. Economic capital is a function of market risk, credit risk, and operational risk. This use of capital based on risk improves the capital allocation across different functional areas of banks, insurance companies, or any business in which capital is placed at risk for an expected return above risk-free.
RAROC system allocates capital for 2 basic reasons
- Risk management
- Performance evaluation
For risk management purposes, the main goal of allocating capital to individual business units is to determine the bank's optimal capital structure (i.e., economic capital allocation is closely correlated with individual business risk).
As a performance evaluation tool, it allows banks to assign capital to business units based on the economic value added of each unit.
References
- "An Introduction to Broad Based Credit Engineering" By Morton Glantz