Summary
Stanford Professor Darrell Duffie discusses how the Federal Reserve could safely shrink its balance sheet by reducing commercial banks' demand for reserves. He outlines four policy tools: temporary open market operations, easing liquidity regulation stigma, implementing a liquidity savings mechanism (software netting of payments), and tiering the interest paid on reserves. The conversation highlights the technical and political challenges of each option and notes that similar tools are already used by other central banks.
- Fed's balance sheet size is primarily a function of liabilities, especially reserve balances, not assets.
- The only practical path to shrinking the Fed's balance sheet is reducing bank demand for reserves.
- Temporary open market operations can smooth reserve fluctuations but save only $100-200 billion.
- Stigma around discount window and repo facilities keeps banks hoarding excess reserves.
- A liquidity savings mechanism could net payment cycles and reduce needed reserves, as done at Bank of England and others.
- Tiering the interest rate on reserves—paying less on excess—would sharply cut demand, as modeled by Duffie.
- Chair Kevin Warsh has expressed desire to shrink the balance sheet and impaneled a task force on the topic.