12.07.2015 Views

NEDBANK CAPITAl - Nedbank Group Limited

NEDBANK CAPITAl - Nedbank Group Limited

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isk and BALANCE SHEET management report<strong>Nedbank</strong> <strong>Group</strong>’s economic capital model and target capital adequacy (used for ICAAP)Credit risksBasel II AIRB credit methodology integrated with sophisticated credit portfolio modelling(incorporating credit concentration risk and intra-risk diversification, counterparty credit risk and securitisation risk)+Transfer risk(closely related to credit risk but arises due to sovereign default and so separately modelled and quantified)Similar to AIRB credit methodology but dependent on probability and the extent of a transfer event (ie sovereign default)+Market risksTrading (position) riskIRRBB riskEquity (investment) and property risksForex translation risksVaR scaled to one year usingVaR limits (board-approved).Simulated modelling of NII;economic value of equity (EVE)also done.300% and 400% risk weightings in linewith Basel II equity risk; PD/LGDApproach for Property Finance.Multiple of exposure, based on randvolatility measures.+Operational riskBasel II Standardised Approach used+Business riskEaR methodology used+Other assets(100% risk-weighted)=Minimum economic capital requirement(after inter-risk diversification benefits)+Capital buffer(10% buffer for procyclicality, stressed scenarios, etc)=Total economic capital requirementMeasurement period/time horizon: one year (same as Basel II)Confidence interval (solvency standard): 99,93% (A) (ie more conservative than Basel II)vsAvailable financial resourcesComprisesTier A = core Tier 1 regulatory capital and qualifying reservesTier B = perpetual preference shares and hybrid debt capital166<strong>NEDBANK</strong> GROUP ANNUAL REPORT 2009

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