Money Markets after Liftoff: Assessment to Date and the Road Ahead
February 22, 2016
Simon Potter, Executive Vice President
Remarks at the 70th Anniversary Celebration of the School of International and Public Affairs at Columbia University, New York City As prepared for delivery

Thank you. It’s an honor to speak to you today as part of the 70th Anniversary Celebration of the School of International and Public Affairs at Columbia University, and I would like to thank my former colleague and longtime friend Trish Mosser for the invitation. The programs offered by SIPA, which aim to train young leaders to address the world’s most pressing public policy problems, are especially relevant to the mission of the New York Fed, and many members of the Bank’s Markets Group are alumni.1

I’m here to offer a few thoughts on money markets and the implementation of monetary policy. Because of the large size of the Federal Reserve’s balance sheet, the staff at the Federal Reserve spent the past several years developing a new and innovative framework to control money market rates, and working to increase the amount of data we receive about trading in those markets. In my remarks today, I will review the performance of this new framework and discuss key insights from those new data collections.

Before 2008, bank reserves were scarce, and the Federal Reserve influenced overnight interest rates by making small adjustments in the supply of reserves. The expansion in the Federal Reserve’s balance sheet during and after the financial crisis means that reserves are now abundant, and small adjustments in the quantity of reserves will not have much influence on overnight interest rates. Instead, the Federal Reserve’s new framework is premised on the payment of interest on reserves and on ensuring sufficient competition in money markets so that the rate of interest paid on reserves is passed through to other money market rates and thus to deposit rates offered to households and firms.2

Implementing policy in this new way has required a significant shift in the staff’s analytical focus, toward quantitative, data-driven analysis of money market structure. This work was accomplished by a large roster of highly talented staff at the Board of Governors, the New York Fed, and elsewhere in the Federal Reserve System. Of course, the development of this new framework entailed frequent interaction with the Board of Governors and the Federal Open Market Committee (FOMC), which are responsible for the tools used to implement monetary policy.

I’ll focus my remarks on a few key questions.

First, what is this new framework and why was it necessary? In this section, I will explain why the Federal Reserve was able to lift rates off zero without requiring large-scale “reserve draining.”3

Next, what do the new data on money market trading say about how this new framework is affecting market conditions? As part of this discussion, I’ll walk through the enhanced data that, starting in March, the New York Fed will use to calculate the effective federal funds rate.4

Finally, what questions remain, and what can be done to learn more about the issues they raise? These include the level of capacity required in the Federal Reserve’s reverse repo operations and the consequences of changes in the regulatory rules for banks and money funds.

As always, these views are mine alone and do not necessarily reflect those of the New York Fed or the Federal Reserve System.

A New Approach for Policy Implementation

Why are we following a new approach to implementing monetary policy?

Before the financial crisis, the Federal Reserve followed a well-worn playbook for monetary policy implementation that was based on scarcity of reserves. Reserves left at the Federal Reserve earned zero percent interest. As a result, to achieve the FOMC’s desired level of the federal funds rate, the Open Market Desk at the New York Fed (Desk) estimated the amount of reserves to add or subtract that would intersect supply and demand at the target interest rate directed by the FOMC.5 All else equal, if the Desk wanted interest rates to go up, it slightly reduced the amount of reserves; if it wanted rates to go down, it slightly increased the amount.6 So long as the Desk was able to effectively forecast the appropriate amount of reserves to add or subtract, temporary open market operations provided it with an efficient means to add or subtract them, and therefore allowed for good control over the federal funds rate.7 These operations were conducted as repos or reverse repos secured by Treasury securities or other high-quality collateral.8

Back then, a typical day on the Desk focused on forecasting the demand for reserves created by reserve requirements and other sources, and projecting autonomous factors affecting reserves. 9, 10 With very small amounts of excess reserves in the system, there was a straightforward relationship between rates in a range of money markets. Thus, the Desk was able to target a rate in one part of the unsecured market by conducting small secured operations as needed with primary dealers.

Since the financial crisis, the environment has changed in two important ways. First, by the end of 2014, following the large-scale asset purchase programs, the Federal Reserve balance sheet was funded by about $3.1 trillion in liabilities other than Federal Reserve notes, which were mostly in the form of reserves in excess of the amount banks were required to hold; in contrast, there were only $64 billion of non-Federal Reserve note liabilities in June 2007, of which only about $2 billion were excess reserves. As a result, reserves are now anything but scarce. Second, Congress granted the Federal Reserve an important new tool: the authority to pay interest on reserve balances, or IOR.11

In many countries, and in theory, a standing facility that pays IOR provides a floor on interest rates. The reason is simple: if a private counterparty can invest cash at the central bank, then given the safety and convenience of this investment, it will dominate any other overnight investment at that interest rate. Further, if banks can acquire funds in the wholesale market at rates below IOR, then competition for these funds will bid up these rates close to that paid on reserves.

The Federal Reserve instituted interest on reserves in late 2008, and the interest rate on reserves turned out not to be a floor; market interest rates fell significantly below it. With the large levels of excess reserves in the system, certain institutional aspects of money markets in the United States—including bank-only access to IOR, credit limits imposed by lenders and other impediments to market competition, and the costs of balance sheet expansion—appear to create frictions that have made IOR act more like a magnet that pulls up short-term interest rates than a firm floor beneath them. Thus, in considering how to implement policy normalization, the Federal Reserve evaluated a variety of ways to increase competition for funds among borrowers and thereby improve the control provided by IOR.12

The Federal Reserve initially considered an approach to policy normalization that was based on a combination of term operations and asset sales or redemptions aimed at making reserves sufficiently scarce so that, once the FOMC decided to tighten monetary policy, this tightening could be implemented using IOR within a framework that was otherwise similar to that used before the crisis.13 As part of this approach, the Federal Reserve acquired a new set of reverse repo counterparties, including money market funds and government-sponsored enterprises, in addition to the primary dealers with which it had traditionally transacted. These new counterparties were major investors of cash in overnight markets and had capacity to facilitate the “draining” of substantial reserve balances, if offered attractive term investments with the Federal Reserve. In addition, the Federal Reserve developed a term deposit facility to drain banks’ reserve balances.14 This playbook of draining reserves back to reserve scarcity to support the transmission of interest on reserves into market rates is standard among central banks. If policymakers had chosen to do so, the Federal Reserve could have made such a term reserve draining approach work to help control money market rates in the United States.15

So, why did the Federal Reserve not follow this approach of large-scale reserve draining? As the balance sheet continued to grow as a result of asset purchase programs, it became apparent that such reserve draining operations would have been very large in comparison to the size of private money markets. As a result, they probably would have had lasting effects on the structure of those markets—for example, by reshaping the structure of term money market activity according to the structure of the Federal Reserve’s operations. These lasting effects could have been especially large if the balance sheet did not run off quickly.

For this reason, the Federal Reserve instead pursued offering an overnight investment opportunity that could, with sufficient capacity, intensify competition in money markets and, without necessarily draining reserves, enhance the transmission of IOR into other overnight money market rates. This approach entailed a twist on a traditional Federal Reserve tool, reverse repos: Instead of running quantity-based, term operations aimed at altering reserve levels, the Desk would run interest-rate-based overnight operations aimed directly at influencing market rates.

A number of operational features were required to implement such an overnight reverse repo, or ON RRP, facility: It would need same-day settlement;16 the operation would need to be run predictably, every day, and as late in the day as possible, to give lenders time to bargain with other counterparties using the outside option of investing with the Federal Reserve;17 an appropriate spread below IOR would be required to ensure that the facility neither induced large changes in the structure of money markets nor lost the ability to support interest rate control;18 and the operations would need enough unused capacity that lenders could credibly propose to leave borrowers that did not offer an adequate interest rate.19

This approach works in theory, and, with the support of staff across the Federal Reserve System, a theoretical framework was developed around money market rate control through the use of this framework.20 The ON RRP facility was also tested for more than two years. This theoretical and empirical examination gave the Federal Reserve confidence that it could effectively raise rates when the time came while limiting undesirable effects on financial market structure, and also ensured that additional term tool options were available if the combination of the overnight tools – IOR and ON RRP – was not sufficient to provide interest rate control.21

At this point, you might have a question: from late 2008 to late 2015, the federal funds rate traded well within the FOMC’s target range of zero to 25 basis points.22 Shouldn’t this have been conclusive evidence as to the ability of the operational framework to provide sufficient control of interest rates?

Unfortunately, the answer is no, because there are natural features of the financial system that likely provide support to interest rates near the zero lower bound, or ZLB. These features include the availability of physical cash and a behavioral aversion by some money market investors to investing at negative rates, and also encompass certain unique features of money markets in the United States, such as legal and regulatory incentives applicable to money market mutual funds and the ability of the government-sponsored enterprises to leave unremunerated deposits at the Federal Reserve.23

As a result, while the pre-liftoff testing suggested that the tools were likely to work well, it wasn’t possible to determine with complete certainty the extent to which market rates were driven by the tools or by ZLB effects. So we couldn’t completely rule out that the federal funds rate and other money market rates might not go up one for one with rises in administered rates. One might also worry that money market rates might not move together as rates rise, meaning that, for example, a disconnect might emerge between secured and unsecured rates, or between overnight and term instruments.24 Either situation could result in impaired transmission of monetary policy into broad financial conditions.

Assessing the Performance of the New Framework

To summarize my conclusion about the performance of the operating framework to date: I am extremely pleased with what we’ve seen so far.

In discussing why I view the framework as effective, it’s helpful to start by explaining what it means for the tools to work well. I think about this issue through three lenses: interest rate control, avoiding unintended impact on the structure of the financial system, and avoiding financial instability. I’ll touch on what each of these mean, and then I’ll review the quantitative evidence since liftoff on how well things have gone.

Interest Rate Control

Clearly, interest rate control is the paramount objective. It is of great importance that the public is confident that the federal funds rate will be, on average over time, within the target range set forth by the FOMC, and that other money market rates will continue to move closely with changes in the federal funds rate. This way, expectations for the FOMC’s future policy stance will be properly incorporated into the term structure of interest rates, and thereby appropriately affect broad financial conditions and the broader economy.

It’s not necessary that the effective rate stay within the target range each and every day. Before the crisis, there was usually a bit of variability in the effective rate owing to limitations on the Desk’s ability to achieve completely precise daily forecasts for reserve demand. Now, as I said earlier, the FOMC sets the target as a range, not as a point value. The federal funds rate can vary within that range, and it could even move outside that range on occasion, without materially affecting the economy. 25

We have instituted a data-driven, cross-market framework for evaluating interest rate control. In unsecured markets, we gather daily, transaction-level data through a new Federal Reserve statistical collection called the FR 2420. These rich data give us much greater insight than we had before the crisis about how these markets are structured, which is important to developing and maintaining an operating regime based on improving competition among borrowers in money markets, in the context of a large amount of reserves and substantial ongoing regulatory and business model changes.

Monetary control does not stop at the effective federal funds rate: The Federal Reserve also wants to ensure that the stance of monetary policy is passed through into other money market rates. For example, we evaluate such transmission in the Treasury tri-party repo market, the market in which ON RRP is conducted, by collecting similar trade-by-trade data from clearing banks. In addition to these overnight markets, we pay close attention to the Eurodollar market, which I’ll address later, as well as term money market rates.

Avoiding Unintended Effects on the Structure of the Financial System

A second lens for evaluating the operational framework is the extent to which it avoids creating incentives that might result in undesirable changes in the structure of the financial system. This means that the framework shouldn’t have lasting unintended effects on how people invest their money or on how financial institutions interact with each other.

The Federal Reserve is operating the ON RRP on a temporary basis, primarily because the balance sheet is currently large. The FOMC’s policy normalization principles and plans make the temporary nature of the ON RRP clear by stating that it will be discontinued when it is no longer needed to help control the federal funds rate.26 This intention was noted again in the minutes to the January FOMC meeting. As a result, we expect that firms would not make structural changes in how they operate in response to the ON RRP, to avoid the cost of unwinding those changes when it is discontinued. The intention of the FOMC to impose an aggregate cap on the ON RRP, as described in the January minutes, will mitigate this risk.

We closely monitor industry structure and fund flows to detect whether the framework is having any unintended impact. For example, we watch banking data and money fund holdings to see if savings are shifting between the two, because if such a shift had to reverse as we wound down the ON RRP, those flows could potentially create costs to the firms concerned and also unnecessary problems for market functioning. We also keep track of prime money funds converting into government-only money funds, because if they do so on the mistaken impression that the Federal Reserve would provide a risk-free investment opportunity indefinitely and on a very large scale, they might later have to unwind that change when their error became apparent.

Avoiding Financial Instability

The third lens for evaluating the framework is the extent to which the framework avoids augmenting risks of financial instability. In particular, the framework shouldn’t create a risk that, in times of stress, money market lenders will rapidly disintermediate their usual counterparties and come to the Federal Reserve instead, such as through the ON RRP facility.27 Of course, flight-to-quality effects existed in financial markets long before we put the new framework into place—what I’m referring to is a situation where the framework facilitates those effects or makes them larger.

We address the risk of sudden surges in take-up in a couple of ways. For example, we can employ vigilant market monitoring to detect any such shifts and allow the FOMC to formulate a response. We also use per-counterparty caps, and can use an aggregate cap.

Evidence to Date on Control

Now, let’s discuss what the data tell us about how well the framework performed.

The distribution of traded rates in the federal funds market, shown in Figure 1, essentially made a parallel shift higher after liftoff. These data are drawn from the new FR 2420 data collection I discussed earlier, and they show an average over all days from liftoff to this past Wednesday, leaving out December 31. Nearly all trading occurred within the new range—it’s normal for there to be a little bit above the range—suggesting that our framework was broadly effective in moving traded rates upward.

Because traded rates moved upward in this way, we have so far achieved an excellent level of control over the federal funds rate. Since December 17, the day after the FOMC meeting, the effective federal funds rate, calculated under its current methodology as a volume-weighted mean, has traded within the FOMC’s new 25-to-50-basis-point range on all but one day, which I’ll come back to. This is shown in Figure 2. The rate has averaged around 36 basis points, about 25 basis points above its average level over the analogous year-ago period, when the target range was zero to 25 basis points.

Let’s consider the calculation of the effective rate for a moment. Last year, we announced some changes to that calculation, the most significant of which is that, starting in March, we will switch to calculating it as a volume-weighted median using data drawn from the FR 2420 data collection, rather than a volume-weighed mean using data provided by federal funds brokers. The change in the data source was made to make the calculation process more robust.28 We changed the calculation methodology because, while the mean and median are usually very close to one another, when they differ the median is a better reflection of money market activity, and because using a median enhances the reliability and integrity of the rate.29 The New York Fed published a technical note this past July that describes in detail the benefits of this change.30

Our recent experience has confirmed the expectation that the transition to the median in March will result in little overall impact on the level of the effective rate over time. Figure 3 shows a time series of the mean and median rates computed from the FR 2420 data. As you can see, they remain quite close to one another.

The FR 2420 data also allow us to examine closely the distribution of traded rates in the overnight Eurodollar deposit market. For those who are not native speakers of money market jargon, the federal funds and Eurodollar deposit markets are very similar: They are wholesale funds taken in by banks, with definitional differences that I’ll leave to the footnotes to my speech.31 Just this past October, following amendments to the FR 2420 collection, we began to receive trade-level data for the bulk of activity in the Eurodollar market. 32

The Eurodollar market is considerably larger than the federal funds market. According to FR 2420 data, on average in the last two months of 2015 there was $233 billion of overnight borrowing in the Eurodollar market; in contrast, over that same period, there was $70 billion overnight borrowing in the federal funds market.33 I’ll show some data on the composition of activity in these markets a bit later, but it’s worthwhile noting that many of the Desk’s nonbank counterparties, such as the money funds, are active lenders in the Eurodollar market.

We observed a similar response in yields in the Eurodollar market as we did in the federal funds market, with the distribution of traded rates making a parallel shift upward of about 25 basis points, as shown in Figure 4. Since liftoff, the overnight Eurodollar volume-weighted mean rate as calculated from FR 2420 data, as seen in Figure 5, has averaged about 35 basis points.34 This is in line with the effective federal funds rate. The volume-weighted median, also shown in the figure, moved upward by a like amount. This is an encouraging development because it indicates that, as we have moved up from the zero lower bound, money market rates are continuing to move together.

We can look into that further by examining the overnight Treasury repo market. Rates on these transactions as reported by the tri-party clearing banks, shown in Figure 6, exhibited a similar shift upward, although they settled modestly lower in the target range than they had in the pre-liftoff period. In part, this shift likely reflects the fact that the ON RRP offered rate was 5 basis points before liftoff—that is, 5 basis points above the bottom of the target range—and it is now set to 25 basis points, or the bottom of the target range.

It also looks as though the increase in the federal funds rate passed through effectively into term money market instruments. Figure 7 shows the recent progression of rates on three-month Treasury bills and three-month commercial paper. Also shown for comparison is a three-month overnight index swap quote for the effective federal funds rate. All of these rates rose going into the December FOMC meeting, which makes quite a bit of sense, given that most market participants expected the FOMC to tighten policy at that meeting.35 We also gather information about rates on term unsecured borrowing in our FR 2420 collection, and about term secured transactions from the clearing banks, and these data tell a similar story.

Treasury bill yields rose a bit less than other rates on instruments of comparable term and now trade at yields somewhat below the ON RRP rate. Treasury bills have some attractive qualities in comparison to ON RRP, such as round-the-clock liquidity. In addition, there seems to be strong demand for bills from investors who don’t have direct access to the ON RRP or IOR, and it appears that most Treasury bills are owned by such investors. Also, bills have typically traded below other money market rates during tightening cycles, as they do now; periods where bills trade at or above other rates have been the exception and not the rule.36 Thus, the smaller increase in bill yields than in rates on other term instruments is not surprising, and I do not read it as undermining the general conclusion that the policy rate increase was effective in firming money market conditions.37

December 31

Now, I mentioned earlier that fed funds traded within the target range on all but one day. Let’s talk about that day, which was December 31.

On that day, the effective federal funds rate, calculated as a mean from the FR 2420 data, printed at 20 basis points, 15 basis points below its prior-day value and 5 basis points below the FOMC’s target range. The median dropped a bit more, by 20 basis points to a level of 15 basis points. In addition, as shown in Figures 8 and 9, the dispersion of traded overnight rates in federal funds and Eurodollars increased on that day, with a substantial amount of trading activity at fairly low rates. These year-end effects were transitory, and the level and distribution of rates in the federal funds and Eurodollar markets returned to pre-year-end conditions on the following day.

Although the effects were transitory and did not adversely affect policy implementation, spending a bit more time on this episode can contribute to our understanding of money market relationships. Why did we see the year-end drop in unsecured rates? Recall that the framework functions by creating opportunities for investors to borrow funds in money markets to earn IOR whenever there are significant differences between market rates and the IOR rate. On quarter-ends, the actual and perceived marginal balance sheet costs of a number of depository institutions increase as they publish financial statements and calculate regulatory ratios.38 These increased balance sheet costs mean that depository institutions borrowing funds in money markets to earn IOR must do so at a lower interest rate to account for these costs. Further, the reduction in balance sheet capacity can temporarily lower the bargaining power of lenders, again allowing borrowers to obtain funds at lower rates.

Many lenders in the federal funds and Eurodollar markets with access to the ON RRP facility responded to these low rates by increasing their use of the facility, as shown in Figure 10. However, other lenders remained in these markets, including those without ON RRP access, those who received funds late in the afternoon after the ON RRP operation had already occurred, and those for which the ON RRP was not an acceptable substitute. On this last point, for some institutions, the ON RRP is an imperfect substitute to lending in private unsecured markets because, in the tri-party repo system through which the ON RRP is settled, cash is not returned at maturity until late the next day, whereas in private unsecured markets, earlier return of funds can be negotiated.39

These quarter-end effects, as measured by the effective federal funds rate, are likely to appear a bit larger when we switch in early March to a median calculation. As I mentioned, on December 31, the median fell a bit more than the mean did, 20 basis points in the median versus 15 for the mean. A larger relative decline isn’t unusual; averaging across the quarter-end dates in March, June, and September 2015, the median declined by 7 basis points while the mean declined by 6. The median declines more because it is, in most cases, a better measure of the center of the distribution of traded rates—an issue the Desk analyzed at some length in the technical note I mentioned earlier. This difference between the two might grow a bit more as rates move further from zero.

In secured markets, rates in the tri-party repo market on year-end were relatively stable. This makes sense, as ON RRP is a good substitute for tri-party repo with private counterparties, and therefore this facility forms a fairly firm floor on overnight repo rates for lenders that have access to the facility.40 As I’ll show in a moment, volumes declined in the private repo market, as is typical on quarter-ends.

Evidence to Date on Other “Lenses”

Turning to the second lens I noted earlier, we have achieved excellent control while avoiding any unintended change in the structure of the financial system. Figure 11 shows RRP take-up over time, grouped by counterparty type. Take-up, both in aggregate and at the counterparty-type level, has been stable since liftoff. Among the money funds shown in this figure, government-only funds make up more of the demand on typical days, with funds that can invest in a broader universe of money market instruments, called prime funds, accounting for the balance. This has also been stable since liftoff.41 Indeed, more recently, usage has come down as unsecured and secured rates have firmed some. Even with zero usage, the ON RRP facility could still be effective in underpinning the level for money market rates by supporting lenders’ bargaining power.

In addition, as shown in Figure 12, lending volumes in secured and unsecured money markets have been stable, suggesting that the Federal Reserve’s facilities have not displaced activity in the private sector.42 Figure 13 shows activity in unsecured markets by select lender types. This shows that, post-liftoff, the composition of activity in these markets also appears to have been stable.

Finally, I’d like to speak briefly to the third lens, avoiding financial instability. As you know, there has been quite a bit of volatility and risk aversion in financial markets lately, and there has been no corresponding surge in ON RRP demand. This continues to be an issue that the FOMC is thinking closely about, as reflected in the January FOMC minutes.

Lessons Learned on Operational Structure

We have learned a lot about the structure of our operations from our experience with liftoff. I will discuss a few of my observations.

Let’s begin with quantifying the aggregate capacity limit. At the December meeting, the FOMC directed that the ON RRP’s capacity be “limited only by the value of Treasury securities held outright in the System Open Market Account that are available for such operations.” As a result, in practice, the ON RRP is currently being run with an aggregate capacity limit of around $2 trillion, which is far in excess of typical daily demand and well above the $300 billion capacity limit the facility had had since September 2014. As the FOMC made clear in the minutes to its March 2015 meeting, this elevated capacity was intended to ensure a smooth liftoff, but the absence of an aggregate cap is only temporary. This is why the recent January minutes included a discussion of when and how it will be appropriate to reinstate an aggregate cap.

So, what have we learned about the appropriate level of the cap? It seems likely that having a very elevated aggregate capacity was helpful in controlling market rates initially, perhaps because it showed the FOMC’s commitment to achieving interest rate control, but it’s unclear exactly how much available capacity, or “headroom,” is needed to maintain such control. By way of background, determining the appropriate level of capacity involves striking a balance between the “lenses” I discussed earlier. Imposing a limit on the facility’s capacity reduces the extent to which there can be a disruptive surge of funds into the facility and the extent to which private-sector investors can change their lending patterns by using the facility. Thus, such a limit helps avoid financial instability and unintended effects on the structure of the financial system. However, a limit that is perceived as likely to bind weakens our control of interest rates, because when demand exceeds capacity, the interest rate paid on the ON RRP facility is determined by an auction and is likely to be below the offering rate, thus reducing the efficacy of the facility in supporting the federal funds rate.43

Our recent experience suggests that having reasonably high aggregate capacity can help improve control without necessarily encouraging greater use of the facility. When that capacity is great enough, money market lenders are confident that they will be able to place funds with us at the administered rate, even on financial statement reporting dates. That confidence empowers them to demand rates from their borrowers that are above the ON RRP offering rate. Conversely, when the capacity is perceived as low, lenders worry that they might not be able to place all their funds at reasonable rates. This means that they might accept relatively low rates in money markets. In addition, because of switching costs and other frictions as well as risk aversion on the part of lenders, rates can decline days or weeks ahead of a date on which the ON RRP is anticipated to reach its capacity, to levels so soft that lenders reallocate funds to the ON RRP.44 So, having a high capacity could actually reduce ON RRP take-up. But as I mentioned earlier, it isn’t clear exactly how high the capacity needs to be to achieve the confidence of which I speak, and the benefits of high capacity must be carefully balanced against the benefits of a tighter aggregate cap in terms of avoiding financial instability and unintended effects on the structure of the financial system.

Looking at the recent data, it’s hard to precisely identify the extent to which the very high capacity, relative to the previous limit of $300 billion, helped to facilitate control beyond instilling confidence, as I discussed earlier. One tentative indication that high capacity may be playing an important role is that unsecured rates appear to have settled in about the same position relative to IOR as before liftoff, even though one might have expected the widening in the IOR-ON RRP spread and the lower support from the ZLB to result in some downward shift.

The ON RRP also has a per-counterparty cap, which was, and is, $30 billion. It seems that the current level of the per-counterparty cap was also adequately large for perceived individual “headroom,” thereby supporting lender bargaining power. Figure 14 shows summary data on how frequently we receive large bids in our operations at the ON RRP and term RRP facilities. As you can see, we rarely see bids of more than $10 billion, and combined individual counterparty usage across overnight and term operations has never exceeded $30 billion.

Recently, we learned a bit about the term RRP operations. We have been conducting these over quarter-ends as a way of providing additional RRP capacity. Additional capacity is available because term RRP operations are subject to a separate overall size limit, and because there is no per-counterparty cap in those operations. Counterparties appear to regard these as close substitutes for ON RRPs, and as shown in Figure 15, we’ve typically seen that overall RRP take-up, across overnight and term RRP, has been fairly stable across quarter-ends.

At this past year-end, there was essentially no take-up at the term RRP operations. The reason is that the aggregate and per-counterparty caps were sufficiently high that market participants were confident that they would not bind, and also because we conducted the term operations without any interest rate premium relative to the overnight operations. At prior quarter-ends, term RRPs were typically offered with maximum bid rates a few basis points above the ON RRP rate.

The year-end experience suggests that market participants generally prefer overnight RRPs to term RRPs if they offer the same rate, and that, if desired, adequate control over money market rates can be attained without term RRPs, as long as there is adequate ON RRP capacity.

Finally, I’ll offer a few observations on a daily repo operation I haven’t yet mentioned. As a long-standing service to foreign central banks, foreign governments, and international official institutions, the New York Fed runs an overnight investment facility known as the foreign repo pool.45 In this operation, at the end of each business day, account holders’ cash balances are invested in an overnight reverse repo secured by the Federal Reserve’s securities holdings.46

The foreign pool is an autonomous factor affecting reserves and, as a result, in the pre-crisis operating framework, the Desk would have to essentially sterilize variations in the pool's size with repo operations. Accordingly, the interest rate on the pool was slightly below overnight Treasury repo rates in the market.47 To ease the Desk’s job in the daily forecasting of autonomous factors, tight limits were imposed on customers’ ability to rapidly vary the size of their investment in the pool.

Since the crisis, the New York Fed has continued to provide the pool as a service. Investments in the pool continue to be paid the market-based rate I mentioned. Figure 16 contains some statistics on this rate relative to a measure of the broad market rate. We do not use the foreign pool as a means for implementing monetary policy, and the change in the composition of Federal Reserve liabilities it can generate has little to no impact in unsecured markets because of the large amount of reserves in the system. Recall that the current operating framework is not based on reserves scarcity.

Use of the foreign pool has grown over the last year and a half, from a bit under $100 billion in mid-2014 to about $247 billion on February 17. This growth isn’t associated with liftoff, and it isn’t because we have changed the way in which the interest rate is calculated. Instead, use of the pool has increased because over time the constraints imposed on customers’ ability to vary the size of their investments have been removed, the supply of balance sheet offered by the private sector to foreign central banks appears to have declined, and some central banks desire to maintain robust dollar liquidity buffers.

Open Questions

Compared with the relative calm of the pre-crisis period, money markets have recently gone through a sustained period of substantial change. Some of these changes are the result of regulations to improve the safety and soundness of the financial system, others relate to business model enhancements, and, of course, some relate to Federal Reserve activity. The Federal Reserve continues to collect data on the structure of money markets to determine whether any changes are needed in its operating framework to ensure that its objectives continue to be met.

We are continuing to watch developments as business models adapt to the numerous changes in bank regulation introduced over the past few years. We are interested in the extent to which these business model changes impact the structure of money markets and thereby affect the form of monetary policy implementation. For example, we are monitoring developments in bank behavior that could have implications for the transmission of monetary policy into market rates. Thus, we are paying close attention to the behavior of foreign banks on financial statement reporting dates. We are also keeping a close eye on how domestic banks continue to respond to enhanced requirements on nonoperating deposits, which, for some institutions, are fairly large relative to the size of their reserve holdings. Should these business model changes increase the spread banks demand to borrow funds in money markets to earn IOR, or should business model decisions apparently related to regulatory changes alter broader dynamics in money markets, this could result in upward pressure on ON RRP take-up over time.

We are also paying close attention to developments in the money market mutual fund industry and their potential impact on policy implementation.48 The Securities and Exchange Commission recently announced new regulations for these funds aimed at enhancing financial stability. One important feature of these new rules is that government-only money funds receive different regulatory treatment than prime funds, possibly making government-only funds more attractive for some institutional investors. If the assets under management in government-only money funds were to grow significantly, that could put upward pressure on ON RRP take-up, since most fund managers consider the facility to be a government investment.49 As I noted earlier, we would not want to see growth in government-only money funds if it were predicated on a mistaken impression that ON RRP would be around indefinitely and with high capacity. Also, if assets under management in prime funds were to decline sharply, this could possibly lead to less efficient transmission of monetary policy.

Finally, we want to keep an eye on relative value relationships in money markets. For example, the difference between customer-to-dealer and interdealer repo rates has been quite volatile in recent months, apparently because of growth in dealer balance sheet costs.

The Road Ahead

To summarize, in the period since liftoff, we have achieved excellent control over the effective federal funds rate, and we have done so while avoiding unintended effects on the financial system or financial stability. The policy rate increase has passed through to other money market rates, suggesting that the increase is affecting broader financial conditions as expected and intended.

We still have a lot of work to do, both to observe ongoing structural changes in financial markets and to formulate and implement any necessary response in the Federal Reserve’s monetary policy operations. I believe we have thoughtfully considered these uncertainties, and I am confident that we have appropriate policy tools available to respond as necessary to them.

Thank you. I would be happy to take a few questions.

Full Presentation Updated February 26, 2016
Data Updated March 1, 2016

1 I would like to thank James Egelhof and Patricia Zobel for their excellent assistance in the preparation of these remarks, and colleagues in the Federal Reserve System for numerous insightful comments and suggestions. In addition, I would like to acknowledge the leadership of James Clouse, William English, and Lorie Logan in the construction of this new framework and James McAndrews for his intellectual leadership on U.S. money markets.

2 For more details on implementation frameworks, see for example Ihrig, Meade, and Weinbach (2015).

3 With the commencement of the policy normalization process in December 2015, the Federal Reserve began issuing an implementation note that provides the operational settings of the Federal Reserve's policy tools. This note serves to separate communications about the policy stance from those about policy implementation. It also promotes greater cohesion and transparency in communications about policy implementation by consolidating information that was previously provided in FOMC statements, FOMC minutes, Desk statements, and elsewhere.

4 An estimated historical series for an effective federal funds rate, produced using the new data source and calculation methodology, is available on the New York Fed’s website. This series will be updated at the end of February.

5 Demand for loans of reserves was driven, for example, by reserve requirements imposed on depository institutions.

6 I emphasize “all else equal.” There were many subtleties to the pre-crisis relationship between the operations and money market rates. In particular, money market rates would often move to a new target rate even before operations were conducted, because of the Federal Reserve’s credibility. Of course, that credibility was underpinned by the Federal Reserve’s actual operational capability. For a detailed exposition on pre-crisis monetary policy implementation, see Bernanke, “Implementing Monetary Policy,” March 30, 2005.

7 Of course, the Desk also controlled the level of reserves through permanent open market operations.

8 When the Desk conducts a reverse repo transaction, it sells securities held in the System Open Market Account (SOMA) under an agreement to repurchase the securities at a predetermined price. The difference between the sale price and the repurchase price, together with the length of time between the two legs of the transaction, implies a rate of interest (the reverse repo rate) paid by the Federal Reserve to its counterparty. The transaction leaves the size of the SOMA securities portfolio unchanged but shifts some of the liabilities on the Fed’s balance sheet from bank reserves to reverse repos while the trade is outstanding. A repo (as opposed to a reverse repo) is the opposite. Before the crisis, repos were more common than reverse repos. The eligible collateral for the Desk’s repo and reverse repo operations is set forth in the FOMC’s Authorization for Domestic Open Market Operations.

9 Autonomous factors are those components of the Federal Reserve’s balance sheet that affect reserve balances but are not directly under the central bank’s control. The largest of these, by far, is currency in circulation. Others include U.S. Treasury deposits, Federal Reserve Bank “float,” and overnight reverse repos conducted with foreign central banks. See, for example, Hilton (2008).

10 The 2005 speech by then-Governor Bernanke that I noted earlier provides great detail on a day in the life on the Desk prior to the financial crisis.

11 Congress granted this authority to the Federal Reserve in the Financial Services Regulatory Relief Act of 2006, with an October 2011 effective date, but accelerated its implementation to October 2008 as part of the legislative response to the financial crisis. A similar tool is critical in the implementation regime of most advanced economy central banks.

12 The FOMC also considered an arrangement under which depository institutions could pledge funds held in a segregated account at the Federal Reserve as collateral in borrowing transactions with private creditors. This approach aimed to reduce credit-related barriers to depository institutions’ borrowing funds in money markets and thereby intensify competition among borrowers. The FOMC decided that these accounts involved operational, regulatory, and policy issues that would have been difficult to resolve in a timely fashion, and it shelved further work. See the minutes to the FOMC’s December 2014 meeting.

13 This approach was discussed in detail in the FOMC’s June 2011 Exit Strategy Principles.

14 The Federal Reserve continues to test its Term Deposit Facility (TDF). In late 2014 and early 2015, the Federal Reserve conducted rounds of testing of the TDF that on two occasions resulted in cumulative take-up of more than $400 billion. These operations reportedly had no significant impact on conditions in money markets, suggesting that TDF operations would have to be significantly larger to put upward pressure on rates.

15 This approach has been used heavily, for example, by central banks that have large foreign exchange reserves.

16 In July 2015, the FOMC announced that changes in administered rates would go into effect on the day after its policy decision. Otherwise, the intraday timing of a policy change could result in various operations being conducted with inconsistent settings.

17 ON RRP is currently offered to a broad set of counterparties; these counterparties make up a fairly large proportion of the lending community in overnight money markets. By offering this large group of counterparties an alternative, risk-free investment option, ON RRP should improve lenders’ market power and help keep money market rates near or above the ON RRP offered rate. Even if money markets were perfectly competitive, ON RRP would likely still be effective at supporting the floor provided by IOR, for example through addressing segmentation between secured and unsecured money markets.

18 The preservation of enough activity in the federal funds market to maintain the viability of the effective federal funds rate was one component of this.

19 A final operational change to improve the transmission of IOR into market rates was a revision to the interest calculation methodology that became effective in July 2015. As originally implemented, interest on excess reserves (IOER) was paid on each bank’s average balances over a two-week maintenance period, at the average interest rate. This meant that if the interest rate changed during a maintenance period, the change would not have been fully reflected in the interest payments to depository institutions until the beginning of a new maintenance period. This methodology likely would have resulted in slow adjustment of market rates to changes in the IOER rate. The revised calculation bases interest payments to depository institutions on the IOER rate in effect each day and the level of balances held each day.

20 See Clouse, Ihrig, Klee, and Chen, “The Federal Reserve’s Tools for Policy Normalization in a Preferred Habitat Model of Financial Markets,” October 2014; Martin, McAndrews, Palida, and Skeie, “Federal Reserve Tools for Managing Rates and Reserves,” September 2013; and Armenter and Lester, “Excess Reserves and Monetary Policy Normalization,” September 2015.

21 Testing focused on two types of term operations. Term RRPs are similar to ON RRP in most respects; for example, both operations use the same expanded set of counterparties. The key differences are that term RRPs are conducted for longer than overnight, they each have their own, separate, aggregate capacity limit, and the term RRP does not incorporate a per-counterparty cap. Term RRPs can be used in a variety of ways. In the current framework, they have been used to offer increased RRP capacity, using an interest-rate-oriented approach, around periods when larger-than-usual demand is expected, but they could also be used in a quantity-oriented way to drain reserves. Term deposits are likewise similar to IOR; TDF offers a somewhat higher rate to banks that are willing to lock up their funds for a time.

22 The FOMC’s decision to use a target range for the federal funds rate, instead of a point target as was used prior to December 2008, further supported the use of this operating framework. The FOMC’s use of a range supports this framework by underscoring the fact that variation of the effective rate within that range is expected and is consistent with the level of interest rate control it desires.

23 Frost, Logan, Martin, McCabe, Natalucci, and Remache, “Overnight RRP Operations as a Monetary Policy Tool: Some Design Considerations,” February 2015.

24 It seems particularly appropriate to pay close attention to the integration of money markets in light of the increase in bank and dealer balance sheet costs that has ensued from post-crisis changes in financial regulations and other factors.

25 See Chair Yellen’s September 17, 2014, press conference. “To begin normalization, the Committee will raise its target range for the federal funds rate. The Committee expects that the effective federal funds rate may vary within the target range, and could even move outside of that range on occasion, but such movements should have no material effect on financial conditions or the broader economy.”

26 See the September 2014 Policy Normalization Principles and Plans.

27 It is possible that the ON RRP facility might, in certain circumstances, have beneficial effects on financial stability by providing confidence that there will be an elastic supply of risk-free assets available to nonbanks.

28Statement Regarding Planned Changes to the Calculation of the Federal Funds Effective Rate and the Publication of an Overnight Bank Funding Rate,” February 2, 2015.

29Statement Regarding the Calculation Methodology for the Effective Federal Funds Rate and Overnight Bank Funding Rate,” July 8, 2015.

30Technical Note Concerning the Methodology for Calculating the Effective Federal Funds Rate,” July 8, 2015.

31 Eurodollars are unsecured U.S. dollar deposits held at a bank or bank branch outside of the United States or domestically through an international banking facility (IBF), whereas federal funds are domestic borrowings by U.S. banks and U.S. branches and agencies of foreign banking organizations (FBOs). Although the Federal Reserve can impose reserve requirements on net Eurodollar deposits of U.S.-based banks, it has imposed a zero reserve requirement since 1990, making the treatment of Eurodollar deposits effectively the same as federal funds borrowings.

32 Since revisions were implemented to the FR 2420 on October 20, 2015, both domestic banks and FBOs have been required to report Eurodollar transactions on the FR 2420. Domestic banks report the activity of all offshore branches with more than $2 billion in assets, while FBOs report activity of offshore branches that are managed and controlled by offices based in the United States. Additionally, both domestic banks and FBOs report the activity of their IBFs. Prior to the revisions, only domestic banks reported Eurodollar transactions, and there was no reporting by IBFs.

33 In addition to enhancing the Eurodollar collection, the revised reporting instructions, effective October 20, 2015, modified and clarified the definition of federal funds transactions and expanded the number of reporting entities. The effect of these changes was an increase in the amount of reported federal funds activity.

34 The data file for this speech, available on the New York Fed’s website, includes a historical calculation of the OBFR based on data provided by federal funds and Eurodollar brokers until October 19, 2015 and based on FR 2420 data, from October 20th, 2015 until February 17th, 2016.

35 See “Responses to Survey of Primary Dealers,” December 2015, and “Responses to Survey of Market Participants,” December 2015.

36 One such exceptional period was in mid-October 2015, amid some market concern about the debt ceiling that eventually abated.

37 The Treasury has recently begun to ramp up its issuance of Treasury bills in part to support the maintenance of a larger cash balance, which it keeps in its “checking account” at the Federal Reserve. This action increases the amount of Treasury bills in circulation, thereby creating a greater stock of investible assets for nonbank money market investors—an outcome that tends to put upward pressure on Treasury bill rates and potentially other term money market rates.

38 Domestic depository institutions are subject to a regulatory leverage ratio that is calculated as an average over the quarter and thus experience less variation in balance sheet costs at the end of quarters.

39 The Federal Home Loan Banks (FHLBs) are one type of institution that requires this feature for some of their cash holdings. Prior to liftoff, the FHLBs, which have access to unremunerated deposit accounts at the Federal Reserve, were able to use this to support their negotiating position with borrowers at quarter-ends, but now with rates further above zero it is less effective in this regard.

40 ON RRP does not always provide a completely firm floor on the tri-party repo market. For example, late-day funds can generate some softness. Also, there is evidence that some lenders in repo markets are reluctant to frequently switch their counterparties. However, ON RRP is otherwise a close substitute to repo with a private counterparty. In particular, since all tri-party repo is unwound at the same time, there is no possibility of early return of funds, which, as I mentioned earlier, is a significant benefit some federal funds and Eurodollar borrowers are able to offer.

41 Prime funds’ share of participation is significantly larger on quarter-end dates.

42 A small number of financial market commentators had opined that use of the tri-party repo infrastructure for the ON RRP facility would make it harder for market participants to borrow the Federal Reserve’s Treasuries in securities lending to facilitate settlement, and therefore result in less liquid Treasury markets. However, use of the Federal Reserve’s securities lending program has been stable since liftoff, suggesting that the design of the ON RRP facility has thus far not contributed to any increase in the scarcity of specific Treasury collateral.

43 If the total amount of propositions received is less than or equal to the amount of available securities, awards are made at the specified offering rate to all counterparties that submit propositions. In the event that the value of propositions received exceeds the ON RRP’s capacity, awards are made at the rate at which the capacity was achieved (the stop-out rate), with all propositions below this rate awarded in full and all propositions equal to this rate awarded on a pro rata basis. The stop-out rate, which can be any value at or below the specified offering rate (including a negative rate), is determined by evaluating all propositions in ascending order by submitted rate up to the point at which the total quantity of propositions equals the overall size limit. The ON RRP FAQs provide more information on the auction mechanism.

44 In September 2014, money market rates were soft for several days going into quarter-end, as market participants anticipated that the ON RRP would reach its aggregate capacity on that day. According to market participants, money market lenders lent overnight funds well in advance of quarter-end at rates below the ON RRP rate to informally secure balance sheet capacity for the quarter-end date.

45 The foreign repo pool is authorized each year by the FOMC. For more background information about the foreign repo pool, see “Services for Central Banks and International Institutions.”

46 Other major central banks provide analogous services. In managing the foreign reserves of the United States, the Federal Reserve avails itself of these services when appropriate.

47 As a result, the rate paid on the pool closely tracked the interest rate achieved on temporary open market operations.

48 We are also monitoring developments in money fund net yields versus retail bank deposit rates. Money fund management fees declined considerably as interest rates fell to near-zero levels, apparently as fund managers worked to preserve a non-negative yield for their investors. Net interest margins at banks were also compressed. It is natural to expect that this compression in margins, both at money funds and at banks, will reverse as rates move away from zero, but the magnitude and timing of this reversal in margin compression may vary among these two investment types. We are watching closely to see whether there is a shift in relative pricing between them that could produce a flow from one to the other and thereby have implications for the structure of financial intermediation.

49 Assets under management in government-only funds could grow two ways: Prime funds could convert into government-only funds, or prime fund investors could transfer their money into government funds. Most prime funds have announced their intentions at this point, and among those that have converted to government funds, take-up has not markedly increased, so therefore we are less concerned about such conversions, but we continue to pay close attention to them, as we do to investor behavior.

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