Demand shock

Trend inflation: How wages and housing are sustaining momentum

While annual inflation may have peaked, it remains at levels we last saw in the early 1980s. Indeed, our preferred measure of the medium-term inflation trend– the six-month annualized change in the trimmed mean personal consumption expenditure price index—is up by nearly 5 percent. Fortunately, policymakers now realize the severity of the situation and are raising interest rates quickly as they work to catch up. Fed fund futures anticipate a rate of at least 3½ percent by yearend—the most rapid increase in more than 40 years. Will this be enough?

In this post, we address this question. Our conclusion is that policymakers will have to act more aggressively than financial markets anticipate if inflation is to decline to the Fed’s 2-percent target within two years. The reason is that inflation has substantial forward momentum arising from two sources. First, a tight labor market combined with elevated short-term inflation expectations appear poised to drive wage inflation higher. Second, there is the continuing impact of increases in prices of housing, both for owners and renters. So, while energy prices as well as other temporary drivers of the current high inflation are fading, and long-term inflation expectations remain reasonably contained, inflation is currently poised to remain well above 2 percent….

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Stagflation: A Primer

The term stagflation came into common use in the mid-1970s, when many advanced economies experienced higher inflation and slower growth than they had in the 1960s. At the time, the joint behavior of inflation and economic growth confused many economists. Throughout the 1950s and 1960s, growth and inflation generally moved in the same direction. Most important, inflation tended to fall during recessions and to rise in booms. Stagflation meant that these two key summary measures of macroeconomic performance moved in opposite directions. What caused this dramatic, painful, and persistent shift?

To understand the sources of stagflation in the 1970s—and how we subsequently avoided a repeat of that episode (at least so far)—we start with the simple premise that there are two types of disturbances hitting the economy: demand and supply. The first, changes in demand, moves inflation and growth in the same direction. The broad array of things that shift demand include fluctuations in consumer or business confidence, shifts in government tax and expenditure policy, and variation in the appeal of imports to domestic residents or of exports to foreigners. When any of these goes up or down, inflation and output rise and fall together.

Supply disturbances—which alter the cost of production—are fundamentally different. These stagflationary shocks move growth and inflation in opposite directions. For example, an adverse supply shock that raises the cost of production at least temporarily drives inflation up and growth down.

Importantly, these cost shocks cannot be the whole story behind a decade-long surge of inflation. Whether the consequences of a cost shock are one-off adjustments in the price level or an increase of the trend of inflation depends on the monetary policy response. Put differently, monetary policy determines whether we experience stagflation over any longer interval….

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The Price is Not Right: Measuring Inflation in a Pandemic

Are prices really plummeting? If you watch the official government gauge of prices in the economy, you would think so. Between March and April, the Consumer Price Index (CPI) dropped by 0.8 percent―that’s a decline of 9.1 percent at an annual rate! Even if we exclude food and energy, prices still fell at half that rate. And, both price measures already had begun to fall the previous month. Is this the new trend? Are we in the midst of a deflation? The short answer is no.

The pandemic is an enormous shock to both supply and demand (see our earlier post). The productive capacity of the economy is lower both now (with the lockdown) and in the medium term (with the need to make economic activity biologically safer). Similarly, demand is lower both temporarily while people stay at home and in the longer term as the propensity to save rises to enable people to pay off elevated debts and build precautionary buffers. Determining which of these shifts prevails is essential for policymakers. If the demand contraction dominates, then trend inflation will fall and policymakers will need to implement further expansionary policies. Conversely, if trend inflation rises (implying that the supply constraints prevail), then policymakers will eventually need to introduce restraint.

In this post, we discuss the difficulties of measuring inflation during a pandemic—when demand and supply both shift dramatically. Our conclusion is that some indices provide better high-frequency signals of the trend. Unsurprisingly, headline measures of inflation are especially poor. Yet, traditional measures of “core inflation” that exclude food and energy may be equally bad. Instead, we suggest focusing on the “trimmed mean,” a statistical construct that disregards all goods and services whose prices change by the largest amounts (either up or down). In recent months, the trimmed mean CPI shows suggest that inflation has edged lower, but remains between 1½ and 2 percent per year….

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COVID-19: What can monetary policy do?

Two weeks prior to their regularly scheduled mid-March meeting, the members of the Federal Open Market Committee (FOMC) voted unanimously to cut their target policy rate by 50 basis points to the 1 to 1¼ percent range. Policymakers attributed their exceptional decision to the “evolving risks” posed by the coronavirus. This move was the first inter-meeting policy rate shift, and the largest cut, since late 2008, at the depth of the financial crisis. Moreover, this time the move came against the background of a strong economy. Nevertheless, based on futures prices, market participants anticipate a further 75-basis-point cut in the target federal funds rate this month!

The coronavirus has thrust us into uncharted territory. Do central bankers really have any tools to guide us back to safer ground?

In the remainder of this post, we discuss the importance for policymakers of distinguishing between shocks to aggregate supply and demand. Importantly, while monetary policy can combat demand shocks, it can do nothing to cushion the impact of reductions in supply without sacrificing the commitment to price stability. The coronavirus shock involves some as-yet-unknown mix of these two very different types of shocks. Yet, given the limited amount of conventional policy space, and the decline of long-term inflation expectations, there is a good case for the FOMC to act rapidly and aggressively….

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