Updated 25/12/2024
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Article 39 - Human judgement

Article 39

Human judgement

When assessing whether the statistical model or another mechanical method is complemented by human judgement in accordance with Article 174(e) of Regulation (EU) No 575/2013 and whether human judgement is applied in a proportionate and adequate manner in the development of the rating model and in the process of assigning exposures to grades or pools, competent authorities shall verify that:

(a)

the manner in which human judgement is applied is justified and fully documented and that the impact of human judgement on the rating system is assessed, if possible also by means of a computation of the marginal contribution of human judgement to the performance of the rating system;

(b)

all relevant information not considered in the model is taken into account and an adequate level of conservatism is applied;

(c)

where the process of assignment of exposures to grades or pools in a rating system requires the application of human judgement in the form of subjective input data or where the credit policy allows for overrides of inputs or outputs of the model, all of the following applies:

(i)

the manual for model users clearly defines the input data and the situations where the input data can be adjusted by human judgement;

(ii)

the situations where the input data have actually been adjusted are limited;

(iii)

the manual for model users clearly defines the situations where the input or output of rating models may be overridden and the procedures for overriding the input or output of the models;

(iv)

all data regarding the application of human judgement and the situations where the inputs or outputs of the rating models have been overridden are stored and analysed periodically by the credit risk control unit or by the validation function in order to ascertain its impact on the rating model;

(d)

the application of human judgement is appropriately managed and proportionate to the type of exposures for each rating system.