Sunday, December 13, 2009

The Curse of Reverse Banking

Banking is the great octane booster of the engines of economy. It can make many people feel rich. Albert deposits $100 in the First National Bank. Bertrand borrows $100 from the First National Bank and deposits the funds in the Second National Bank. Clyde borrows $100 from the Second National Bank ... and so on ad infinitum. Everyone has $100 in their bank accounts at the same time! There is a lot more spendable funds now than if Albert had just kept his $100 under the mattress. A whole lot more. Whee!

This sort of dementia has been going on for a couple hundred years and has reached a fevered pitch in the last ten or so. How could this go on so long without it all crashing down like the house of cards that it is? That is the marvel of economic growth. As long as the economy, and consequently income, keeps growing in the aggregate, there will be plenty of funds to keep all those plates spinning.

When banking goes into reverse though, it is deadly. Sufficient losses on loans cause banks to become unprofitable. Unprofitable banks have to pull the loss out of their equity and shrink lending, because loans cannot exceed a regulated ratio of bank equity. Roughly $10 of lending has to be cut for every $1 of losses. When lending is cut, borrowers have to pay back loans (if they can) instead of rolling them over. When they can't pay the loans back, the banks have further losses, and must restrict lending even more.

It gets worse. When borrowers have to pay back loans they have to cut other spending. If their income is falling, this causes their spending to fall disproportionately. One person's spending is another's income, so income tends to fall. When income falls, debt becomes harder to pay back, and many borrowers default, causing more loan losses for banks, and more restrictions on lending.

Around and around this destruction goes, and where it stops nobody knows. The entire World's economy is wildly indebted. Households, businesses, and governments have never been so in debt as they are now. What goes up, must come down. The bottom could be shockingly low.

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