The ongoing debate concerning credit concentration risk is mainly driven by the requirementson credit risk management due to Pillar 2 of Basel II since risks (e.g. concentration risk) that arenot fully captured by Pillar 1 should be adequately considered in the banks’ risk management....

"Coherent" measures of a bank's whole risk capital imply a structure of a bank's optimalcredit portfolio that is independent of its deposits and the expected deposit rate, of expectedbankruptcy costs and of expected costs of regulatory capital...