Two weeks ago, Yaron Brook spoke at my campus about the origins of the financial crisis. One of his primary culprits was the Federal Reserve in general, and Alan Greenspan in particular. He likened the job of Alan Greenspan to that of the bureaucrats in the former Soviet Union whose job was to set the price of bread. The result of the bread pricing was a chronic shortage of bread.
While Alan Greenspan may deserve much of the blame for the financial crisis, Brook would have been more accurate to argue that the Federal Reserve Open Market Committee (FROMC), of which Greenspan was the chair, was partly to blame for the financial crisis. The job of the FROMC is to set a target rate for the federal funds rate, the rate that banks charge each other on short term loans. The effect of setting this target rate is to alter the money to drive the federal funds rate to the level the FROMC desires, setting off what amounts to a chain reaction that drives other interest rates.
Interest rates are essentially the future price of money, so targeting the interest rate is is setting the future price of money. Back in the early part of this decade, the FROMC essentially drove interest rates below the rate of inflation, and the effect of this was an explosion in borrowing that proved to be unstable.
To explain, suppose there is only one interest rate, an annual rate, and all loans are made for one year. Both the principal and the interest is paid in a lump sum at the end of the term of the loan. If the nominal interest rate is 1% and a person borrows $10,000, he'll have to pay back $10,100 in one year. If the inflation rate is 3%, then the lender needs to get back $10,300 to have the exact same purchasing power in one year that $10,000 has right now. Basically, by making a loan, the lender is $200 worse off and the borrower is $200 better off in terms of overall purchasing power.
Remember that banks loan out the money that they hold as deposits, so they act as intermediaries between households. So when one person borrows from a bank, he is essentially borrowing money from another household. So the question is, if the inflation rate is 3% and the interest rate is 1%, is it better to be a borrower or a lender?
Many people chose to be a borrower, and that was one of the reasons the economy got into the mess it's in right now. Basically, the FROMC did not get the future price of money "right" (whatever "right" is), much like the Soviet Union's bread bureaucrats never got the price of bread right.
Michael Bardo of Rutgers and Anna Schwartz of the NBER have a similar take in this Bloomberg column by Caroline Baum (HT to Craig Newmark).
As for Posner’s contention that the Fed’s erring on the
side of low interest rates constitutes a failure of capitalism,
Friedman “would have said it was total nonsense,” said Michael
Bordo, professor of economics at Rutgers University in New
Brunswick, New Jersey, who earned his Ph.D. in economics from
Chicago. “It was not a failure of capitalism; it was a failure
of the central bank.”
The odds that 19 men and women (a.k.a. the Federal Open
Market Committee) will be able to select the overnight interest
rate that keeps the U.S. economy growing at its potential in
perpetuity are next to nil.
...“He wouldn’t agree” it was a failure of capitalism, said
Anna Schwartz, a research associate at the National Bureau of
Economic Research and Friedman’s co-author on “A Monetary
History of the United States, 1867-1960.” “It was a failure of
government.”
The Fed conducted “very easy monetary policy, which
permitted the asset-price boom,” she said yesterday in a
telephone interview. “It had nothing to do with capitalism
failing. It had to do with the policies and institutions that
conducted them.”
To be fair to Greenspan and all past, present, and future FROMC chairmen, it's asking a lot for people to be, as Greg Mankiw might say all-knowing, benevolent, all-powerful central planners. That is, it's
asking a lot for people to 1. have the sufficient information to allocate
resources efficiently, 2. to have the best interests of the citizenry as a
whole at heart, and 3. to be able to tell resource owners what to do with
their property - all three at the same time. Products are complicated things, and so is the determination of prices. This is why central planning fails to do many things as well as people left to their rational self-interest in markets.