A commenter asks,
could you comment on Gramm & Savings contention in the 8/2 WSJ that the Fed’s reverse-repos shrink the money supply? It has gotten serious pushback in the letters section of today’s WSJ. But if true, it would seem to explain a lot.
I don’t know. Isn’t that sad? I have a Ph.D in economics, and I spent 6 years working at the Fed, and I don’t really understand the intricacies of how it operates these days.
Back in the 1980s, when I read Marcia Stigum’s Money Market, I thought I understood repos and reverse repos. If the Fed is doing a repo, it is buying a security from a dealer that it will sell back to the dealer on a specified date, perhaps in a day, perhaps in a week. In effect, the Fed is lending to the dealer, using the security as collateral. Repo lending is expansionary. When the Fed wants to tweak short-term interest rates down, it does more repo.
Reverse repos have the Fed playing the role of borrower and the Wall Street firm playing the role of lender. As the name suggests, it is a repo in reverse. That would suggest that, all else equal, the Fed doing reverse repos is contractionary.
But nowadays a lot of “monetary policy” comes in the form of regulation, including capital requirements. I gather that regulatory issues may have driven the increase in reverse repos. So I cannot say for sure that the reverse repos are contractionary, because it could depend on how they interact with capital requirements and other regulations.
In general, I regard the Fed as affecting the allocation of capital rather than overall macroeconomic outcomes. The Fed wants to make sure that the government can finance its deficits. That was the original purpose of central banks, and I still think it’s the one that the Fed will be held to. That is why I do not think that the Fed has either the will or the means to stop inflation in the face of persistent, high deficit spending.