Even perfectly perceived risks cause wrong decisions if excessively considered

Should banks consider risk factors, such as the probability of default (PD) and the expected loss given a default (LGD), when setting the interest rates it charges clients? Of course, higher perceived risk-higher interests, lower risks-lower interest rates. 

But regulators curiously decided that these risks should also be cleared for in the capital requirements for banks, and decreed: higher perceived risk-higher capital, lower risks-lower capital.

So now banks clear for these risks both with risk adjusted interest rates and risk adjusted capital. That’s a real serious problem because any risk excessively considered, will produce the wrong decision, even if the risk is perfectly perceived.

Now a higher interest rate perfectly set in accordance to a perfectly perceived higher risk translates, because of higher capital requirement, meaning a lower leverage, into a lower risk adjusted expected return on equity. 

Now a lower interest rate perfectly set in accordance to a perfectly perceived lower risk translates, because of a lower capital requirement, meaning a higher leverage, into a higher risk adjusted expected return on equity.

So now banks, even when the risks are perfectly perceived, lend too little to the risky, or in order to compensate for lower ROEs, at too high risk adjusted interest rates; and lend too much to the safe, or thanks to higher ROEs, at too low risk adjusted interest rates.

This is insane! It produces dangerous misallocation of bank credit to the real economy. Too little financing of the "riskier" future and too much refinancing of the "safer" present.

PS. There is a possibility of credit being allocated efficiently to the real economy, but that requires that what is perceived as safe to be much safer and what’s perceived as risky to be much riskier. What credit rating agencies could guarantee us such mistakes?

Regulators and bankers looking out for the same risks 

Here is what those who believe risk weighted capital requirement for banks is smart must be thinking.

Are you one of them?

The pillar of current bank regulations is risk weighted capital requirements for banks: More perceived credit risk more capital – less perceived credit risk less capital.

Below what those who believe risk weighted capital requirement for banks is smart, must be thinking. Are you one of them?

That though with banks so many other aspects are risky, like the possibility of cyber attacks, the only thing that matters are credit risks.

That even though banks perceive credit risks, and adjust for that with risk premiums and the size of their exposures, that’s not enough, banks must also adjust for the same perceived risks in their capital.

That lending little at high-risk premiums to something perceived risky, is riskier than lending a lot at very low risk premiums to something perceived safe.

That bankers, no matter what Mark Twain thinks, love to lend out the umbrella when it rains and abhor doing so when the sun shines.

That it is the specific credit risk of the assets that matter, and not how banks manage those risks.

That the expected credit risks are good estimators of the unexpected losses banks need to hold capital against.

That the safer an asset is perceived the less is its potential to deliver unexpected losses.

That the riskier and asset is perceived the greater is its potential to deliver unexpected losses. 

That as long as banks do not fail, the rest, like if they allocate bank credit efficiently to the real economy or not, does not matter. 

That even though a bank is required to hold more capital lending to someone perceive risky than when lending to the AAArisktocracy, that has nothing to do with inequality.

That even if a sovereign depends on its citizens, the sovereign can have a zero risk weight while the citizens, like SMEs and entrepreneur should have a 100 percent risk weight.

That though all major bank crises have occurred because of excessive exposures to what was erroneously perceived as safe, that has nothing to do with tomorrow's bank crises.

That even though no major crisis has have occurred because of excessive exposures to what ex ante was perceived as risky, that has nothing to do with tomorrow's bank crises.

That if you, to the banker’s natural risk aversion, add on the regulators natural risk aversion, you will not risk getting an excessive risk aversion that could be dangerous for the real economy.

That if the perceived credit risk is correct, it does not matter how much importance you give to that perception.

That if you play around with the odds of roulette it will survive as a viable game