Regulators, please, your only problems with banks begin when their risk models stop to function.

Now we read that “Under rules being implemented by the Federal Reserve and the Office of the Comptroller of the Currency, the biggest U.S. banks will use their own models for judging their riskiness.”

Are they nuts? 

Bank regulators should have no problems whatsoever when banks own internal models which determine the “expected losses” function well.

The regulators only serious problems begin when these models do no function well... and “unexpected losses” result.

And so, frankly, it seems utterly absurd to allow for regulations which are based on trusting the bank models to function well.

And in this case, trusting primarily those banks which because of their systemic significance most can hurt if their risk models do not work... is like doubling up on the mistake.

If anything, trust the small banks which, if and when they fail, do not hurt us as much.