Stephen Miran5:20
Thank you. So, thank you Francisco for that very kind introduction. It's an honor to be here tonight at the Economic Club of Miami. I'm going to talk about a topic that's too large to ignore, the Fed's balance sheet. Like any other bank, the Fed's balance sheet is a record of assets and liabilities that we hold. The assets are primarily Treasury securities and agency mortgage-backed securities. The liabilities include all US currency in circulation, reserve balances banks hold at the Fed, and the Treasury general account. The size and composition of these holdings matters because they affect the amount of money in the banking system and influence broader financial conditions. Understanding how the balance sheet functions is essential to understanding how the Fed supports economic stability and conducts monetary policy. Today I will discuss the various regimes under which the Fed has operated its balance sheet and explain why in my view shrinking the size of the balance sheet is desirable. Next I will explain why the challenge of shrinking the balance sheet is a solvable one and then I will discuss potential paths forward towards accomplishing that goal. Finally, I'll conclude with the monetary policy implications of such action. Modern balance sheet policy revolves around three somewhat nebulous concepts: scarce, ample, and abundant reserves. Before the 2008 global financial crisis, the Fed operated with scarce reserves. Under that regime, the Fed kept reserves relatively tight and frequently intervened directly in the market, using open market operations to steer the federal funds rate towards its target. After the crisis, the Fed moved to an ample reserves regime in which the banking system holds enough reserves that the Fed does not need to engage in active daily operations to control the policy rate. This system allows the Fed to control short-term interest rates primarily by setting rates at which it will participate in the market or administered rates. During much of the post-crisis period, reserves were also described as abundant or well beyond what's needed for that smooth market functioning. This was because quantitative easing policies dramatically expanded reserve balances. There are numerous reasons why reducing the balance sheet is a worthy goal. We should aim for as small a footprint in markets as possible to minimize government-induced distortions, particularly funding market disintermediation. A smaller balance sheet also helps lower the chances of mark-to-market losses at the central bank and the volatility of remittances to the Treasury. In addition, a smaller balance sheet better protects the boundaries between monetary and fiscal policy by preserving the duration profile of the public debt as a fiscal policy item, keeping the Fed out of the credit allocation game across sectors, and reducing interest payments on reserve balances, which some in Congress view as a subsidy to the banking system. Finally, a smaller balance sheet preserves dry powder for a scenario in which policymakers must again confront the zero lower bound on interest rates. Yet, despite these benefits of a smaller balance sheet, many say it simply cannot be done. It's a pipe dream. It'll never happen. Now, if you tell me something is impossible, I can't help asking, really, is that the case? This trait has gotten me into plenty of trouble before, but I can't help myself. So, let's think through the possibilities here. My topline assessment is that shrinking the balance sheet is indeed a solvable challenge. Those who reject the idea out of hand, I think lack a little imagination. In approaching this challenge, I see three primary questions. The first question is how much could we shrink the balance sheet? I think quite a lot, but that does not necessarily mean returning it to its share of gross domestic product before the financial crisis. I see dipping to that level as not particularly feasible. The growth in currency demand, the post-crisis regime put in place by Dodd-Frank and reforms to the Basel standards and the resulting changes to market structures and expectations all resulted in greater demand for reserves in the system. The second question is does reducing the balance sheet from here necessitate a return to scarce reserves? I argue not necessarily. Instead, the Fed can take steps to reduce the lines that demarcate scarce, ample, and abundant. Lowering these boundaries can be done through a variety of policies that I'll touch on soon. Shifting these boundaries down would allow for retaining an ample reserves balance sheet policy while reducing the size of the balance sheet. And the third question is, is it desirable or even possible to return to a scarce reserves regime? I believe we could return to scarce reserves within the current regulatory institutional framework, but it would entail trade-offs. Those include accepting more volatility in short rates, more tolerance for active management of reserves from the Fed, and more frequent and regular use of Fed-provided liquidity like daylight overdrafts, the discount window, or standing repo operations. How you view the impact of these side effects will inform whether you think returning to scarce reserves is desirable. Is lowering the boundary between scarce and ample easier said than done? Perhaps. But I see a path forward to achieving that goal. Measures that could effectively shift the boundaries down are articulated in a working paper I co-wrote with some of my Federal Reserve colleagues, 'A User's Guide to Reducing the Federal Reserve's Balance Sheet.' These actions include the following steps: easing liquidity coverage ratio and related requirements; bounding internal liquidity stress test expectations and related resolution planning liquidity standards; destigmatizing the standing repo operations, discount window usage and delayed overdraft usage; engaging in more active open market operations, particularly around quarter ends and fiscally significant dates; making it easier for dealers to absorb securities; making alternatives to reserves like Treasury securities more liquid and attractive; and conducting policy with a slightly higher effective federal funds rate relative to the interest rate on reserve balances conditional on a given target range. That is only a sample of the steps that we could take to reduce the size of the Fed's balance sheet. There is much more in the paper and I encourage you to review it. To be clear, both in the user's guide and in these remarks, I'm not advocating any specific step. I'm simply listing options that we were able to identify so that if and when the time comes, the Fed will have some tangible actions we can take to move in that direction. Each option will require its own cost-benefit analysis. Even if Fed policymakers were to opt to return to scarce reserves, taking steps to reduce reserve demand will make it easier to do so and allow the balance sheet to shrink further while minimizing downsides. Some of the options I listed, like destigmatizing repo operations, the discount window and daylight overdraft credit, or conducting temporary open market operations, will also improve the state of the world in a scarce reserves regime. My own lean is toward reducing reserve demand but retaining ample reserves, but it's not a firmly held conviction. Let's return to my first question. How much can the balance sheet be reduced if you're going to reduce the balance sheet? As I said the pre-crisis level is not a realistic benchmark. So instead I'll offer two alternatives. First after the conclusion of the first round of QE the balance sheet was about 15% of GDP. It's possible that this level of the balance sheet was needed to accommodate the liquidity requirements of the financial sector before the second round of QE and subsequent asset purchases began scaling up the balance sheet for the purpose of achieving our dual mandate goals rather than financial stability as the first QE program was. Or before the start of open-ended QE in 2012 and in 2019 before the pandemic the balance sheet was about 18% of GDP. This level in theory reflects the liquidity needs of the banking sector as the scope of Dodd-Frank and Basel requirements became clear before the launch of open-ended QE. It also reflects the scope of possible balance sheet reduction after the crisis but before the pandemic. This level incorporates some of the so-called ratchet effects on the balance sheet but not the ones incurred since the pandemic. Loosely speaking, this range could reflect 1 to 2 trillion dollars of balance sheet reduction from current levels. Numbers that are reasonably provided in the user's guide without needing to return to scarce reserves. Of course, the optimal size of the balance sheet is a subject that warrants much more serious work. And it's possible it's better to scale the balance sheet by a financial variable like bank deposits rather than by GDP. I don't aim to settle this question today. The tools identified in today's user's guide would unlock substantial room to further reduce the balance sheet, which I would like to see. However, in a scenario in which the Fed is shedding securities from its balance sheet, policymakers also need to ensure the financial markets can absorb those securities with minimum disruption. The most important thing we can do will be to go slowly. It is hard to overemphasize how important this is. It also means allowing securities to mature rather than selling them outright, which would realize losses on the Fed's balance sheet. I could imagine selling our securities if we saw them trading at a profit, but not otherwise. Some other steps in the user's guide might make it easier for the market to digest securities from our balance sheet. Now that I've outlined some ideas we expand upon in the user's guide, I'd like to conclude my talk with a few thoughts on how balance sheet operations can affect the economy and monetary policy. I principally see that happening through two channels. The first is through the supply of money and liquidity, the liability side of the Fed's balance sheet. In a classic monetarist sense, reserves are high-powered money and increasing their supply is an expansion of the money supply. The second is through what economists call the portfolio balance channel or the asset side of the Fed's balance sheet. To expand on this concept, at a given set of prices, the private sector has a fixed capacity to absorb additional financial risk, including interest rate risk. The Fed's removal or provision of interest rate risk to the public will therefore affect the private sector's willingness to take financial risk overall. All else equal, reducing the balance sheet has contractionary effects for the economy through both channels. The contractionary economic effects of balance sheet reduction can be offset with a lower federal funds rate so long as we are not at the effective lower bound. It is therefore likely that a resumption of balance sheet reduction warrants additional reductions in the Fed funds rate relative to baseline projections. However, putting magnitudes on these effects is challenging and I'm not going to attempt to do so today. In closing, the benefits of reducing the size of the Fed's balance sheet are clear and in my view achievable. The Fed's balance sheet can shrink, but policymakers should first take steps to make sure they are successful. I've laid out some of these possible steps today and offer further details in the user's guide. Each of those steps is likely to have some cost and benefits and will have to be duly studied and calibrated. Implementing these steps before beginning to reduce the balance sheet means that it will be some time before we can begin. If we decide to go ahead, based on my experience with how government navigates the Administrative Procedure Act, this process is likely to take well over a year once the decision is taken to proceed. It could take several years. That timeline would dictate when the Federal Open Market Committee decides to begin reducing the balance sheet and studying how to implement these changes, including giving markets guidance on how new mechanisms will function. And once the process begins, I would counsel a slow pace of reductions to ensure the private sector can absorb all the securities shed off of our own balance sheet. I'm excited that all of this can happen, but if or when it does, I expect it to proceed slowly. Thank you again to the Economic Club of Miami for the opportunity to speak here this evening, and I look forward to discussing with John.