The prudential supervisor is right in willing to preserve a space for a private dialogue and engagement with the banks on the way it assesses them, and the detailed appraisal of their risk profiles need not be disclosed.
But the sum of all capital requirements of a bank, including macroprudential buffers, can hardly be held secret to those who own it or to those who are asked to provide it credit. A final issue of substance that I wish to address is that of enforcement.