Krugman Gives the Federal Reserve a Thumbs Up!

If you want to understand US economic policy, there is no clearer source than Paul Krugman. Here's a blog where he explains the trillion dollar injection of funds by the Fed. Read the whole blog entry to get the full picture, but here's the gist:

The big policy news this week has been the Fed’s decision to buy $1 trillion of long-term bonds, going beyond the normal policy of buying only short-term debt. Good move — but it’s probably worth pointing out that yes, this does expose the Fed, and indirectly the taxpayer, to some risks. And in so doing, it blurs the line between fiscal and monetary policy.

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But here’s the rub: if and when the economy recovers, it’s likely that long-term interest rates will rise, especially if the Fed’s current policy is successful in bringing them down. Suppose that the Fed has bought a bunch of 10-year bonds at 2.5% interest, and that by the time the Fed wants to shrink the money supply again the interest rate has risen to 5 or 6 percent, where it was before the crisis. Then the price of those bonds will have dropped significantly.

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My back of the envelope calculation looks like this: if the Fed buys $1 trillion of 10-year bonds at 2.5%, and has to sell those bonds in an environment where the market demands a yield to maturity of more than 5%, it will take around a $200 billion loss.

I’m not complaining; I think quantitative easing (it’s really qualitative easing, but I give up on trying to fix the terminology) is the right way to go. But we should go into it with our eyes open.