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KEY POINTS Federal Reserve economists have floated the idea of a "standing repo facility" which would allow banks to exchange Treasurys for reserves.

The idea would be to get banks to hold fewer reserves, and thus would help the Fed in its quest to shrink its balance sheet.

There's considerable support for the plan, but critics say it could represent more dangerous tinkering with financial markets.

Federal Reserve Chairman Jerome Powell holds a news conference following the two-day Federal Open Market Committee (FOMC) policy meeting in Washington, U.S., March 20, 2019. Jonathan Ernst | Reuters

Federal Reserve officials are considering a new program that would allow banks to exchange Treasurys for reserves, a move aimed at ensuring liquidity during difficult times that also would help the central bank decrease the size of its nearly $4 trillion balance sheet. The so-called standing repo facility is in its early discussion phases. Respected St. Louis Fed economists David Andolfatto and Jane Ihrig have authored two papers on the plan, which they say would ease the regulatory burden for banks that feel pressured into holding ultra-safe assets. In some quarters, the idea is viewed as a natural extension of current Fed policy. Others, though, think it in essence could be a repackaged form of quantitative easing and thus yet another iteration of the Fed's decadelong tinkering in financial markets. The idea comes as central bank policymakers look for ways to cut the bond holdings on its balance sheet without being disruptive to markets.

"With this facility in place, banks should feel comfortable holding Treasuries to help accommodate stress scenarios instead of reserves," Andolfatto and Ihrig wrote in March. "The demand for reserves would decline substantially as a result. Ample reserves — and therefore the size of the Fed's balance sheet — could in fact be much closer to their historical levels." In a follow-up a few weeks ago, the duo wrote that the first paper "generated a considerable amount of discussion among industry experts. Many people seemed broadly sympathetic to the proposal, while others expressed skepticism."

A question of balance

Determining an appropriate size for the bond portfolio has been an ongoing headache at the central bank. Fed Chairman Jerome Powell's comments in December that a program to cut the balance sheet was on "autopilot" contributed to a market meltdown that lasted through the fourth quarter. Since October 2017, the Fed has been allowing a set level of proceeds from Treasurys and mortgage-backed securities holdings to roll off each month, resulting in a reduction of just shy of $500 billion. A subsequent Fed policy pivot that included an intention to end the balance sheet roll-off in September assuaged the market. However, the question of where the level of bonds, and reserves, ends up over the long run remains. Instituting a standing repo facility would encourage banks to hold more Treasurys and thus reduce the demand for reserves, which escalated after the financial crisis when big Wall Street institutions faced a crippling liquidity shortage. Congress responded to the crisis with reforms that mandated higher holdings of safe assets. While Treasurys are considered safe, they aren't as liquid during times of stress. The Fed ideally would like to see a lower reserve level, with the New York Fed putting the desired number from banks around $784 billion. The level of bank reserves at the Fed peaked at nearly $2.8 trillion in mid-2014 and is currently $1.55 trillion, or some $1.41 trillion above the required amount. Reserves and the bond assets are on opposite sides of the balance sheet and thus tend to move in sync. Backers see the repo facility as a relatively risk-free way of giving banks a release valve in times of financial tightness while providing at least a stealthy form of QE. "It makes it a much easier transition. The banks would not feel obligated to hold these reserves if the could get the reserves quickly by selling Treasurys to the Fed," said David Beckworth, a research fellow at the Mercatus Center and former economist at the Treasury Department. "This would be a much more market-driven QE. The banks could quickly get reserves. You could see a big balance sheet again, but that would be driven by the banks." Under three previous QE stages — another called "Operation Twist" was balance sheet neutral — the Fed credited itself with funds that it then used to acquire Treasurys and mortgage-backed securities. The total of the operations was about $3.8 trillion and is widely felt to have stemmed liquidity issues, held interest rates low, and juiced up the prices of risky assets like stocks and corporate bonds. Over the past year and a half or so, the Fed has sought to shed some of those assets and restore some normalcy to monetary policy. Former Fed Chair Janet Yellen had characterized the balance sheet roll-off as akin to "watching paint dry" as it would run "in the background." Reality, though, hasn't been so smooth, and the Fed has sought ways to allay market fears that the new policy regime would be disruptive.

Shadows of the crisis

Beckworth said that under another recession or significant pullback "it's almost guaranteed the Fed is quickly going back to QE. You can easily imagine the Fed doing QE4, QE5. The Fed's balance sheet, if I had to bet money, is going to get pretty large in the next recession. It's a really poor form of debt management." Supporters of the reverse repo facility said it would correct some of the mistakes of the past and stand as a bulwark against market disruptions like what happened during the financial crisis in 2008. "There's that old saying about liquidity is always there except when you need it most. If you're a banker, what you're most concerned about is that we'll have another episode like what happened at the height of the financial crisis," said Peter Ireland, an economics professor at Boston College and member of the Shadow Open Market Committee, which monitors Fed policy. "The nice thing about the standing repurchase facility would be that the Fed would say to banks, 'Look, we stand ready in times of stress to supply reserves on demand. ... This would enable banks to decrease their hold of excess reserves, which is what the Fed wants them to do, increase their holdings of Treasurys, which is what [banks] want to do, while still guarding against a freeze-up of markets during times of stress." How quickly the Fed might take up the idea is uncertain. Ireland said he expects the central bank likely wouldn't act until it became necessary, for fear of "unintended consequences." The policymaking Federal Open Market Committee meets Tuesday and Wednesday, so the item could come up on the agenda. The committee is almost certain to not raise rates, but faces several questions. Fed watchers have been wondering whether the committee will make a technical adjustment to the interest it pays on excess reserves, which is now running 4 basis points behind the funds rate, a unique relationship for the two rates.