Monday, December 22, 2008

Primer on the Federal Reserve

A truly informative post at Econbrowser that provides an excellent overview of the Federal Reserve System for the layperson and a wonkish explanation of the Fed's balance sheet for the not-so-layperson.

Let me begin by reviewing some first principles of what the Fed is all about. How did the cash currently in your wallet get there? You withdrew it from an ATM, perhaps. But these wonderful contraptions don't just give you the green stuff for free-- you had to have deposits in the bank to be able to withdraw the cash. You can think of your account with your bank as credits you can use to get cash whenever you want it.

But where did your bank get the cash? It likely has an account with the Federal Reserve System, which account, just like the one you have with your bank, shows a certain level of deposits that the bank has in its account with the Fed. Your bank can then go to the Fed and withdraw those deposits in the form of cash. So you can think of your bank's deposits with the Fed as credits it can use to get cash whenever it wants.

And how did your bank come to have those deposits with the Fed? These deposits are something the Fed has the power to create out of thin air. This indeed is its primary power-- the ability to create money. That's a power that could be easily abused, so our system is set up to prevent the Fed from creating deposits willy-nilly. Specifically, the traditional operation of the Federal Reserve was to purchase assets such as Treasury securities from a private dealer, paying for them by simply crediting the dealer's account with the Fed with new deposits. The Fed hasn't created any wealth with this transaction, it has simply introduced a new asset (ultimately, money) and retired an old (the Treasuries that were formerly held by a member of the public are now held by the Fed).

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