How do you regulate a regulator’s algorithm?

Sir, I refer to your opinion “Want to regulate ‘the algorithm’? It won’t be easy” Washington Post December 3, 2021, in which you discuss the thorny issue of how to regulate social media in general and Facebook in particular.

Regulators, like the Federal Reserve, de facto also use an algorithm, the risk weighted bank capital requirements. This one determines how much capital/equity banks need to hold and, by its incentive of allowing more or less leverage of bank capital, influences how credit is allocated to the economy.

Let me list a few of too many worrisome aspects of that algorithm:

That what’s perceived as risky is more dangerous to bank systems than what’s perceived as safe

That bureaucrats know better what to do with taxpayer’s credit than e.g.., entrepreneurs with theirs.

That banks should refinance much more our “safer” present than finance our children’s and grandchildren’s’ “riskier” future.

That residential mortgages should be prioritized over small business loans.

How did we get there? My briefest answer: Groupthink by deskbound members of a mutual admiration club. Anyone who has walked on main-streets would e.g., understand that the real risks are conditioned to how risks are perceived, signifying assets can become very risky by the sole fact of being perceived very safe.

John A. Shedd, in “Salt from my attic” 1928 wrote: “A ship in harbor is safe, but that is not what ships are for”. Sir, I submit that goes for banks too. Try to ask current regulators about the purpose of our banks.

PS. IBM, we need our bank regulators to be helped by your Watson.

PS. Rachel Siegel wrote on December 3 “Biden’s pledge to bring ‘new diversity’ to Federal Reserve to soon be tested” I just hope the true meaning of diversity is really understood.

AI Watson, would you ever feed robobankers those algorithms current bank regulators feed human bankers?

The normal real world rules banks had to follow for about 600 years before 1988, in order to become and remain successful bankers, was to while carefully considering their portfolio, to lend or invest in whatever they perceived would produce them the highest risk adjusted returns on equity. One dollar of equity lost in an operation perceived as risky would hurt just as much as a dollar lost in an operation perceived as safe. 

And even though bankers in general suffered from a risk aversion bias, expressed well by Mark Twain’s “a banker is one to lend you the umbrella when the sun shines and wanting it back when it seems it could rain”, that obviously served our economies well. 

As John Kenneth Galbraith argued, even when in some cases “Banks opened and closed doors and bankruptcies were frequent, as a consequence of agile and flexible credit policies, the failed banks left a wake of development in their passing.”

But then came the Basel Committee for Banking Supervision, and out of the blue decided to assume bankers did not perceive risks; and so came up with their risk weighted capital requirements. These instructed banks, with no consideration to their portfolio, to hold more capital (equity) against what is perceived risky and less against what is perceived safe.

As an example of their crazy regulatory algorithm, it suffices to mention they assigned a risk weight of 20% for the so dangerously AAA rated while one of 150% to the so innocous below BB- rated.

As a consequence of this bankers had to morph from being mainly risk perceivers into also having to be capital (equity) minimizers. Being able to leverage more the “safe “ than the “risky” allowed them to obtain higher risk adjusted returns on equity lending with the safe than with the risky.

As a consequence we have already suffered major bank crisis resulting from excessive exposures to what was erroneously perceived, decreed or concocted as safe, like AAA rates securities and sovereigns like Greece.

As a consequence of not enough lending to the “risky”, like SMEs and entrepreneurs, development is coming to a halt.

Since regulators refuse to listen to little me, I can’t wait for IBM’s Watson developing lending and investment algorithms for robobankers. These would help show bank current regulators how dangerously wrong they are.

Watson would understand that with current distortions banks go wrong even if they perceive the risks absolutely correct.

Watson would understand that what is perceived risky ex ante becomes by that fact alone less dangerous ex post; and that what is perceived safe ex ante becomes by that fact alone more dangerous ex post.

“May God defend me from my friends, I can defend myself from my enemies” Voltaire.

Regulator Watson, in contrast to the Basel Committee, would not be looking in the same direction the bankers look

PS. Here on the regulators' confirmation bias

PS. Here my letter to the Financial Stability Board

PS. How do you regulate a regulators' algorithm?

Mr Watson IBM, besides helping wine growers, when are you going to tell bank regulators they’re so wrong?

Bank regulators, thinking they are so smart, assigned a meager 20% risk weight for what is rated AAA to AA, and a whopping 150% to what is rated below BB-.

That allows banks to hold much less capital against assets rated AAA to AA than against assets rated below BB-.

Now you tell me Watson, what is more dangerous to our banking system, that rated AAA to AA, that because is perceived as so safe could lead to the dangerous build-up of excessive bank exposures, or that which because it is rated below BB- bankers wont touch with a ten feet pole?

So, when are you going to offer to help the bank regulators? They sure need it! We sure need it!

Q. Watson, what about requiring banks to hold more capital against risky assets than against safe? A. Dumb!

Let me explain:

If banks must hold more capital against assets perceived ex ante as risky than against assets perceived as safe then: banks will earn higher risk adjusted returns on equity for assets perceived as safe than for assets perceived as risky; and that distorts the economic efficient allocation of bank credit to the real economy, which of course attempts against a vital purpose of banks.

More dumbness: Since major bank crisis always occur because something ex ante perceived as safe turns out ex post as very risky, this would guarantee that banks stand there with the pants down and little capital to cover themselves up, precisely when they most need it.

More dumbness: Bank capital is required in order to cover for unexpected risks so as to estimate these based on the expected losses from perceived credit risks is, to put it delicately, not smart at all.

More dumbness: To make it more difficult for The Risky, like SMEs and entrepreneurs to have fair access to bank credit, does certainly produce increased inequality

Do you want me to keep going on its dumbness?

What about this? The risk weight for those that being perceived as safe could pose so much danger for the banking system like the AAA rated, was set at 20% in Basel II. The risk weight for those totally innocuous below BB- rated, was set at 150%.

No Mr Watson, that should be more than enough. Thank you. I will immediately call the Basel Committee, the Financial Stability Board and the IMF, and suggest they consult you on this delicate matters, that in my opinion is taking our economies down.