The Fed’s institutional credibility is its most valuable asset, far more consequential to macroeconomic performance than its holdings of long-term Treasury securities or agency securities. That credibility could be meaningfully undermined if we were to take actions that were unlikely to yield clear and significant benefits.
Indeed, the Federal Reserve should continue to give careful consideration to the appropriate size and composition of its existing holdings. Actual sales will not take place in the near term. But, depending on the evolution of the economy and financial markets, we should consider a gradual, prospective exit – communicated well-in-advance – from our portfolio of mortgagebacked securities.