Article 154
Risk-weighted exposure amounts for retail exposures
The risk-weighted exposure amounts for retail exposures shall be calculated in accordance with the following formulae:
Risk – weighted exposure amount = RW · exposure value
where the risk weight RW is defined as follows:
if PD = 1, i.e., for defaulted exposures, RW shall be
where ELBE shall be the institution's best estimate of expected loss for the defaulted exposure in accordance with Article 181(1)(h);
if PD < 1, then:
where:
N |
= the cumulative distribution function for a standard normal random variable, i.e. N(x) equals the probability that a normal random variable with mean of 0 and variance of 1, is less than or equal to x; |
G |
= the inverse cumulative distribution function for a standard normal random variable, i.e. if x = G(z), x is the value such that N(x) = z; |
R |
= the coefficient of correlation, which is defined as:
|
The risk weight calculated for an exposure partially secured by residential property pursuant to paragraph 1, point (ii), taking into account a coefficient of correlation R as set out in the first subparagraph of this paragraph, shall be applied both to the secured and the unsecured part of that exposure.
Competent authorities shall review the relative volatility of loss rates across QRREs belonging to the same type of exposures, as well as across the aggregate QRRE exposure class, and shall share information on the typical characteristics of qualifying revolving retail loss rates with Member States and with EBA.
To be eligible for the retail treatment, purchased receivables shall comply with the requirements set out in Article 184 and the following conditions:
the institution has purchased the receivables from unrelated third party sellers, and its exposure to the obligor of the receivable does not include any exposures that are directly or indirectly originated by the institution itself;
the purchased receivables shall be generated on an arm's-length basis between the seller and the obligor. As such, inter-company accounts receivables and receivables subject to contra-accounts between firms that buy and sell to each other are ineligible;
the purchasing institution has a claim on all proceeds from the purchased receivables or a pro-rata interest in the proceeds; and
the portfolio of purchased receivables is sufficiently diversified.