(7)Given that certain AVAs that relate to valuation uncertainty are not additive, an aggregation approach that can take account of diversification benefits should be permitted within certain categories of AVAs for the elements of the AVA that do not relate to an element of expected exit cost that is not included in fair value. For the purpose of aggregating AVAs it should also be made possible to receive diversification benefits on the difference between the expected value and the prudent value so that banks with a fair value which is already more prudent than expected value do not get less diversification benefit than those that use the expected value as the fair value.