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The capital charge for each business line is calculated by multiplying gross income by a factor (denoted beta) assigned to that business line. Beta serves as a proxy for the industry-wide relationship between the operational risk loss experience for a given business line and the aggregate level of gross income for that business line.
A part of the regulatory Capital and RWA (risk-weighted asset) calculation [1] introduced under Basel 3; The CVA desk of an investment bank, whose purpose is to: hedge for possible losses due to counterparty default; hedge to reduce the amount of capital required under the CVA calculation of Basel 3; The "CVA charge".
The use of expected shortfall instead of value at risk as a measure of risk under stress; thus ensuring that banks capture tail risk events; The risk of market illiquidity; FRTB additionally sets a "higher bar" for banks to use their own, internal models for calculating capital, as opposed to the standardised approach. [2]
The Basel II accord proposes to permit banks a choice between two broad methodologies for calculating their capital requirements for credit risk. The other alternative is based on internal ratings. Reforms to the standardised approach to credit risk are due to be introduced under the Basel III: Finalising post-crisis reforms.
The basic approach or basic indicator approach is a set of operational risk measurement techniques proposed under Basel II capital adequacy rules for banking institutions. Basel II requires all banking institutions to set aside capital for operational risk .
On the other hand, some investments in physical capital can reduce risk and the value of the risk reduction can be estimated with financial calculation methods, just as market risk in financial markets is estimated. For example energy efficiency investments, in addition to reducing fuel costs, reduce exposure fuel price risk. As less fuel is ...
The capital charge is equivalent to the potential loss on the institution’s equity portfolio arising from an assumed instantaneous shock equivalent to the 99th percentile, one-tailed confidence interval of the difference between quarterly returns and an appropriate risk-free rate computed over a long-term sample period.
The methods (or approaches) increase in sophistication and risk sensitivity with AMA being the most advanced of the three. Under AMA the banks are allowed to develop their own empirical model to quantify required capital for operational risk. Banks can use this approach only subject to approval from their local regulators.