Related provisions for BIPRU 4.3.108

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BIPRU 4.3.79GRP
While the qualitative requirements in BIPRU 4 are important for all portfolios, they are of even greater importance in those cases where a firm lacks sufficient historical data to calibrate or validate its estimates of PD, LGD or conversion factors on the basis of proven statistical significance, sometimes referred to as low default portfolios.
BIPRU 4.3.84RRP
Any changes in lending practice or the process for pursuing recoveries over the observation periods referred to in BIPRU 4.4.31 R (Observation period for sovereigns, institutions and corporates for PDs), BIPRU 4.6.28 R (Observation period for retail exposures for PDs), BIPRU 4.4.54 R (Observation period for sovereigns, institutions and corporates for LGDs), BIPRU 4.6.33 R (Observation period for retail exposures for LGDs), BIPRU 4.4.55 R (Observation period for sovereigns, institutions
BIPRU 4.3.101RRP
(1) A firm's estimates of LGDs must take into account:(a) data in respect of relevant incomplete workouts; and(b) the possibility that the proportion of defaultedexposures which are cured (as referred to in BIPRU 4.3.71 R) or restructured (as referred to in BIPRU 4.3.63 R (5)) or the length of the period over which a firm makes recoveries under a defaultedexposure may be different from the firm's observed historic experience.(2) An incomplete workout as referred to in (1)(a) means
BIPRU 4.4.27RRP
To the extent that a firm uses data on internal default experience for the estimation of PDs it must be able to demonstrate in its analysis that the estimates are reflective of underwriting standards and of any differences in the rating system that generated the data and the current rating system. Where underwriting standards or rating systems have changed, a firm must add a greater margin of conservatism in its estimate of PD.[Note:BCD Annex VII Part 4 point 63]
BIPRU 4.4.54RRP
1In addition to the requirements in BIPRU 4.3.74 R - BIPRU 4.3.94 R (General requirements about risk quantification) and BIPRU 4.3.98 R - BIPRU 4.3.123 R (Requirements for risk quantification specific to own-LGD estimates), estimates of LGD must be based on data over a minimum of five years, increasing by one year each year after implementation until a minimum of seven years is reached, for at least one data source. If the available observation period spans a longer period for
BIPRU 4.4.55RRP
1In addition to the requirements in BIPRU 4.3.124 R - BIPRU 4.3.131 R (Requirements specific to own-conversion factor estimates), estimates of conversion factors must be based on data over a minimum of five years, increasing by one year each year after implementation until a minimum of seven years is reached, for at least one data source. If the available observation period spans a longer period for any source, and the data is relevant, this longer period must be used.[Note:BCD
BIPRU 4.6.29RRP
A firm may have, when implementing the IRB approach, relevant data covering a period of two years. The period to be covered must increase by one year each year until relevant data covers a period of five years.[Note:BCD Annex VII Part 4 point 71 (part)]
BIPRU 4.6.34RRP
A firm may have, when it implements the IRB approach, relevant data covering a period of two years. The period to be covered must increase by one year each year until relevant data covers a period of five years.[Note:BCD Annex VII Part 4 point 86 (part)]
BIPRU 4.6.39RRP
A firm may have, when it implements the IRB approach, relevant data covering a period of two years. The period to be covered must increase by one year each year until relevant data cover a period of five years.[Note:BCD Annex VII Part 4 point 95 (part)]
BIPRU 4.2.5GRP
(1) This paragraph provides guidance on BIPRU 4.2.2 R and in particular BIPRU 4.2.2 R (1).(2) The information that a firm produces or uses for the purpose of the IRB approach should be reliable and take proper account of the different users of the information produced (customers, shareholders, regulators and other market participants).(3) A firm should establish quantified and documented targets and standards, against which it should test the accuracy of data used in its rating
BIPRU 4.7.27RRP
(1) A firm must meet the standards set out in (2) to (9) for the purpose of calculating capital requirements.(2) The estimate of potential loss must be robust to adverse market movements relevant to the long-term risk profile of the firm's specific holdings. The data used to represent return distributions must reflect the longest sample period for which data is available and be meaningful in representing the risk profile of the firm's specific equity exposures. The data used must