With their “Risk-Weights” it is the regulator who is taking the load off the books of the banks

With reference to all being written about that “distasteful” behavior of banks of putting much of their exposure off the books, you should perhaps consider the following:

When the regulators used (and use) a risk-weight of only 20% to reflect the risk-weighted value on the books of banks, of for instance lousily awarded mortgages to the subprime sector that manage to hustle up a triple-A rating, it was (is) the regulator who is taking 80% off the balance sheet(books)of the banks.

When the regulators used (and use) a risk-weight of only 0% to reflect the risk-weighted value on the books of banks of loans to a sovereign rated triple-A, like the US or UK, it was (is) the regulator who is taking 100% off the balance sheet(books)of the banks.

Sincerely, I doubt the banks could have managed that kind of disappearance acts on their own.