Correspondent banking just seems messed up at the incentive layer... Seems like there is an incentive for banks to just credit free money into each other's accounts... Surely they can create lots of smaller (low profile) banks with accounts all over the place then use this mechanism to print free money for themselves to expand the money supply ad-infinitum. The attack surface is massive. With the same money being loaned and re-loaned across thousands of different banks, how could anyone possibly detect fraudulent currency creation (and distinguish it from genuine deposits)? It just takes one bank to act unethically in a chain of several thousands in order to subvert the entire system.
Even without unethical behavior, it seems like a small chance of human error, when applied across thousands of banks, would cause accidental printed money to leak into the system. For example, there have been many news reports of banks accidentally crediting people with 100x the money which they were supposed to receive; what about all the times when such error occurred but was not detected and did not make the news? That money still found its way into the economy and still contributed to inflation.
The problem can be simply summarized as too many single points of failure.
A homeowner can take $100,000 from a home equity line of credit and drop it into his savings account and create $100,000 in new dollars with a button click. The bank didn’t need to “get” deposits to make this happen as the deposits are created when the homeowner took out the loan. The new dollars and the liability are just entries in the banks balance book but the dollars can be spent like any other dollar at that point.
If the next day the homeowner moved all the money back and paid off the equity the dollars are destroyed. This is how a bank works.
The size of a banks balance sheet and the number of dollars it can create is constrained by the amount of shareholder equity (by regulation). Regulators typically require a 10 to 1 ratio of loans to capital which has potential for fraud.
Just imagine if you had 10 banks levered 10 to 1 and you took all the deposits and put them on black at the local casino. Half of your bets would yield a 10x return on capital and the others you’d lose all your capital (and all your depositors money) but on average you’d make 5x.
Because of the risk banks are highly regulated and regulators require that named individuals that can be held personally and criminally liable for fraud and auditors who also can be held personally and criminally liable as well.
The banks can't print anything. "Money" is a stupidly defined term in econ/finance.
You and I could create IOUs to each other out the wazoo. You owe me $10 mill. It's an asset to me. I owe you $10 mill, it's an asset to you. You and I could go around saying we have $10 mill each in assets. It's not even a lie.
It's why when you enter into a contract for a loan from anyone sensible they want to see your assets and your liabilities. Because our little game above resulted in a net change of 0 for each of us.
Not just that, but I'm going to have a hard time using your $10 mil IOU as collateral for another loan. On the other hand I'd have no trouble whatsoever using a $10 mil IOU from the US Government as collateral. The question is do your liabilities have currency?
Even without unethical behavior, it seems like a small chance of human error, when applied across thousands of banks, would cause accidental printed money to leak into the system. For example, there have been many news reports of banks accidentally crediting people with 100x the money which they were supposed to receive; what about all the times when such error occurred but was not detected and did not make the news? That money still found its way into the economy and still contributed to inflation.
The problem can be simply summarized as too many single points of failure.