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Regulation 133 Statistical quality standards
(1) The internal model of an insurance undertaking or reinsurance undertaking, and in particular the calculation of the probability distribution forecast underlying it, shall comply with the following criteria.
(2) The methods used to calculate the probability distribution forecast -
(a) shall be based on adequate, applicable and relevant actuarial and statistical techniques,
(b) shall be consistent with the methods used to calculate technical provisions, and
(c) shall be based on current and credible information and realistic assumptions.
(3) The undertaking shall be able to justify to the Bank the assumptions underlying its internal model.
(4) Data used for the internal model shall be accurate, complete and appropriate.
(5) In addition, the data sets used in the calculation of the probability distribution forecast shall be updated at least annually by the undertaking.
(6) The Bank shall not prescribe any particular method for the calculation of the probability distribution forecast.