Dealing with the next downturn

Aug 1, 2019|BlackRock Investment Institute

From unconventional monetary policy to unprecedented policy coordination.

Setting the scene

Unprecedented policies will be needed to respond to the next economic downturn. Monetary policy is almost exhausted as global interest rates plunge towards zero or below. Inflation expectations are dragging on actual inflation. See chart below.

^{Sources: BlackRock Investment Institute, with data from Refinitiv Datastream, August 2019. Notes: This chart shows the actual change in the annual rate of US core Consumer Price Index (CPI) and estimates of the contributions of various economic drivers. We break the drivers of inflation as implied by the Phillips curve into three factors: slack, cost-push factors (mainly via productivity growth and various global input costs) and inflation expectations. The factors are broken down by percentage point of contribution to the overall implied Phillips curve inflation from the starting point in 2007. The implied Phillips curve estimates are partly based off the August 2013 paper The Phillips Curve is Alive and Well. We use a measure of inflation expectations similar to the 2010 paper Modeling Inflation after the Crisis.}

Fiscal policy on its own will struggle to provide major stimulus in a timely fashion given high debt levels and the typical lags with implementation. Without a clear framework in place, policymakers will inevitably find themselves blurring the boundaries between fiscal and monetary policies. This threatens the hard-won credibility of policy institutions and could open the door to uncontrolled fiscal spending. This paper outlines the contours of a framework to mitigate this risk so as to enable an unprecedented coordination through a monetary-financed fiscal facility. Activated, funded and closed by the central bank to achieve an explicit inflation objective, the facility would be deployed by the fiscal authority.

There is not enough monetary policy space to deal with the next downturn: The current policy space for global central banks is limited and will not be enough to respond to a significant, let alone a dramatic, downturn. Conventional and unconventional monetary policy works primarily through the stimulative impact of lower short-term and long-term interest rates. This channel is almost tapped out: One-third of the developed market government bond and investment grade universe now has negative yields, and global bond yields are closing in on their potential floor. Further support cannot rely on interest rates falling.
Fiscal policy should play a greater role but is unlikely to be effective on its own: Fiscal policy can stimulate activity without relying on interest rates going lower – and globally there is a strong case for spending on infrastructure, education and renewable energy with the objective of elevating potential growth. The current low-rate environment also creates greater fiscal space. But fiscal policy is typically not nimble enough, and there are limits to what it can achieve on its own. With global debt at record levels, major fiscal stimulus could raise interest rates or stoke expectations of future fiscal consolidation, undercutting and perhaps even eliminating its stimulative boost .
A soft form of coordination would help ensure that monetary and fiscal policy are both providing stimulus rather than working in opposite directions as has often been the case in the post-crisis period. This experience suggests that there is room for a better policy – and yet simply hoping for such an outcome will probably not be enough.
An unprecedented response is needed when monetary policy is exhausted and fiscal space is limited. That response will likely involve “going direct”: Going direct means the central bank finding ways to get central bank money directly in the hands of public and private sector spenders. Going direct, which can be organised in a variety of different ways, works by: 1) bypassing the interest rate channel when this traditional central bank toolkit is exhausted, and; 2) enforcing policy coordination so that the fiscal expansion does not lead to an offsetting increase in interest rates.
An extreme form of “going direct” would be an explicit and permanent monetary financing of a fiscal expansion, or so-called helicopter money. Explicit monetary financing in sufficient size will push up inflation. Without explicit boundaries, however, it would undermine institutional credibility and could lead to uncontrolled fiscal spending.
A practical way of “going direct” would need to deliver the following. This could deliver the following: 1) defining the unusual circumstances that would call for such unusual coordination; 2) in those circumstances, an explicit inflation objective that fiscal and monetary authorities are jointly held accountable for achieving; 3) a mechanism that enables nimble deployment of productive fiscal policy, and; 4) a clear exit strategy. Such a mechanism could take the form of a standing emergency fiscal facility. It would be a permanent set-up but would be only activated when monetary policy is tapped out and inflation is expected to systematically undershoot its target over the policy horizon.
The size of this facility would be determined by the central bank and calibrated to achieve the inflation objective, which would include making up for past inflation misses. Once medium-term trend inflation is back at target and monetary policy space is regained, the facility would be closed. Importantly, such a set-up helps preserve central bank independence and credibility.

Eroding policy space

After a decade of unprecedented monetary stimulus around the world, actual inflation and inflation expectations still remain stubbornly low in most major economies. Inflation is falling persistently short of central bank targets even in economies operating beyond full employment – notably the US. It is even more unusual to see a drop in inflation expectations in the late-cycle stage when concerns would typically focus on overheating.

US yield curve actual and hypothetical based on historical recession impact, 2019

^{Sources: BlackRock Investment Institute, with data from Refinitiv Datastream, August 2019. Notes: The chart shows the current US Treasury yield curve and hypothetical yield curve. The hypothetical curve shows what the yield curve would look like based on its median move during the past five recessions. The bars show the range of moves during those recessions. To account for the changing interest rate environment of the past few decades, the curve moves are adjusted based on the structural decline in neutral rates discussed in our report. Forward looking estimates may not come to pass.}

Monetary policy – both conventional and unconventional – works through lower interest rates. Lowering rates across the yield curve helps stimulate demand by lowering the cost of financing consumption or investment. It also gives investors incentives to rebalance into riskier assets, in principle reducing the cost of capital for companies. If policy rates are near their effective lower bound (ELB) and the scope for longer term rates to fall is limited, monetary policy cannot provide much more stimulus through this channel – a liquidity trap situation.

We detailed the factors that have been driving the decline in interest rates in our November 2017 paper The safety premium driving low rates.

The secular decline in neutral interest rates (r-star) – the estimate of rates that neither stimulates nor hinders economic growth – has reduced the distance from the effective lower bound (ELB) and thereby how much the central bank can cut in a downturn. Lower potential growth is one factor, but our r-star estimate, based on a Fed model, has fallen by more than growth since the mid-2000s – especially after the crisis. We believe this wedge reflects the role played by an increase in global risk aversion, initially stoked after the late-1990s Asia financial crisis and later magnified by the GFC. These severe shocks motivated persistently higher precautionary savings by both the public and private sectors, dragging down the neutral rate. Our estimates suggest that greater risk aversion and lower potential growth each account equally for the roughly 150 basis point decline in the US r-star since the GFC.

Rising risk aversion also makes perceived safe assets more alluring and compresses their yields relative to other assets. This is why investors are pushing interest rates ever lower and flattening out yield curves. Nominal yields on long-term government bonds are at new record lows – the entire German bund yield curve is now negative – or back near historic ones in the US. The term premium – the compensation that investors typically demand for bearing the greater risk of long-term bonds – is negative again. Interest rates in Europe and Japan may already be near their ultimate floor as long as there is still physical cash.

The chart above shows the current US Treasury yield curve compared with a hypothetical one based on the median curve moves during the recessions of recent decades, adjusted for structural changes to neutral rates. We do this to get a sense of how the curve might need to shift lower from current levels if it were to react in a similar fashion as during past recessions. To get a similar move now, short-term rates would need to drop to around -2%. We believe such a move is highly unlikely if not impossible – the ELB where central banks stop cutting rates, and investors stop chasing negative yields, is almost certainly higher than this.

Conventional and unconventional monetary policy space is therefore limited and rapidly being used up even before central banks respond to the next downturn, let alone a full-blown recession.

Conventional fiscal policy

Fiscal policy can do more heavy lifting when monetary policy alone is no longer enough. Even without any coordination, governments have room to borrow and invest more – especially in a low interest rate environment – to effectively stir activity. We have argued that there has not been enough government spending globally on infrastructure, education, renewable energy or other technologies to lift total factor productivity growth back to its pre-crisis trends and boost potential growth.

^{Sources: BlackRock Investment Institute, with data from the Organisation of Economic Cooperation and Development, August 2019. Notes: The chart shows real interest rates minus GDP growth based on the OECD’s May 2019 economic outlook. The interest rate is the effective rate paid on debt and thus adjusted by the maturity of the overall debt.}

The low interest rate environment increases fiscal space not only by making it cheaper to borrow, but also makes it possible for some governments to grow out of the increased debt. The ratio of interest expense to revenue for developed market (DM) governments is lower on average now than it was before the crisis, even though debt levels are considerably higher. So as long as risk free rates stay below the return on capital and trend growth, it is possible to increase deficits and still see debt-to-GDP ratios fall (Blanchard 2019, Furman and Summers 2019). The chart below shows how this is true for many DM countries.

There are good reasons to expect an environment favourable to fiscal policy to persist: the deep-rooted forces underlying the global saving glut will not change quickly on their own or will need material changes to be affected. That appears to be the market’s belief.

Yet there is no guarantee this favourable wedge between interest rates and trend growth would persist in the face of a major fiscal expansion. The strength and persistence of global precautionary saving pushed real interest rates below growth, driven by the decline in both neutral rates and the term premium, according to our estimates. But a significant increase in borrowing by governments globally could absorb part or all of this saving glut, pushing real interest rates towards or even above growth.

Furthermore, with debt/GDP ratios reaching new record highs, it would not take much of a shock to growth or interest rates for the debt ratio to balloon and spark concerns about debt sustainability. Hence high existing debt levels mean fiscal policy is vulnerable to even transitory interest rate spikes. Such a surge in rates could damage the fiscal policy space. This could arise from a so-called sudden stop: a temporary drying up of liquidity due to concerns about debt sustainability or losing reserve currency status.

Typically countries that issue debt in their own currency can sustain higher debt levels and have more flexibility than countries that cannot. Yet countries borrowing in their own currency cannot completely avoid a surge in rates. If debt is on an unsustainable trajectory, the central bank can intervene by either increasing the monetary base by printing money or restarting QE. In the first case, runaway inflation would likely result at some point. In the second, it is important to realise that QE does not improve the government’s solvency: as the central bank issues reserves to buy bonds, the consolidated balance sheet of the government sector – including the central bank – is unchanged.

Record debt levels might also stoke expectations that taxes will be raised, or benefits reduced, in the future. Such expectations could reduce current private sector spending and reduce the effectiveness of any public spending increase, a phenomenon known as Ricardian equivalence.

Going direct: contours of a framework

We believe a practical approach would be to stipulate a contingency where monetary and fiscal policy would become jointly responsible for achieving the inflation target.

Stylised impact of SEFF on yields and prices

^Sources^{: BlackRock Investment Institute, August 2019. Notes: These stylised charts show the hypothetical impact of a temporary increase in fiscal stimulus financed by the central bank, as reflected in the SEFF funding (red line). The other red lines show the impact on the inflation trend relative to the inflation target (dotted line) and on the long-term sovereign bond yield. The yellow lines show the hypothetical outcome if there is no stimulus in this scenario. For illustrative purposes only. There is no guarantee that any forecasts made will come to pass.}

To be sure, agreeing on the proper governance for such cooperation would be politically difficult and take time. That said, here are the contours of a framework:

An emergency fiscal facility – that we refer to as the standing emergency fiscal facility (SEFF) – would operate on top of automatic stabilisers and discretionary spending, with the explicit objective of bringing the price-level back to target.
The central bank would activate the SEFF when interest rates cannot be lowered and a significant inflation miss is expected over the policy horizon. See the SEFF funding level in the stylised chart at top above.
The central bank would determine the size of the SEFF based on its estimates of what is needed to get the medium-term trend price level back to target and would determine ex ante the exit point. Monetary policy would operate similar to yield curve control, holding yields at zero while fiscal spending ramps up – see the yield at zero in the middle chart above. (The charts help sketch out the concept but are not intended to be a precise representation of how it might work.)
The central bank would calibrate the size of the SEFF based on what is needed to achieve its inflation target – the red dotted line in the bottom chart above.

This proposed framework could include Bernanke’s temporary price-level target where the central bank commits to not only reach its inflation target but make up for past shortfalls (see Bernanke 2017 and our June 2019 work on inflation make-up strategies). Importantly, it complements it by specifying the mechanism – the SEFF – to push inflation higher. This is inspired by Bernanke’s 2016 proposal for a money-financed fiscal programme.

This approach improves on other fiscal approaches to providing stimulus when rates are at the ELB, we believe. Similar to Furman and Summers (2019) and Blanchard (2019), it argues for the use of fiscal policy – yet it does not rely on rates staying below growth for the entire time needed to stimulate the economy.

Our proposal stands in sharp contrast to the prescription from MMT proponents. They advocate the use of monetary financing in most circumstances and downplay any impact on inflation. Our proposal is for an unusual coordination of fiscal and monetary policy that is limited to an unusual situation – a liquidity trap – with a pre-defined exit point and an explicit inflation objective. Quasi-fiscal credit easing, such as central bank purchases of private assets, could be operated by the SEFF rather than the central bank alone to separate monetary and fiscal decisions.

A credible stimulus strategy would help investors understand what will happen once the monetary policy space is exhausted and provides a clear gauge to evaluate the systematic fiscal policy response. Spelling out a contingency plan in advance would increase its effectiveness and might also reduce the amount of stimulus ultimately needed. As former US Treasury Secretary Henry Paulson famously said during the financial crisis: “If you've got a bazooka, and people know you've got it, you may not have to take it out.”

This is one way to implement a credible coordination framework. In the next downturn, the loss of central bank independence and uncontrolled fiscal spending are risks. Any framework will need to put boundaries around such policy coordination to mitigate these risks.

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