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Friday, March 29, 2024

“When To Worry?”: How Long After The Curve Inverts Does The Recession Begin

Courtesy of ZeroHedge. View original post here.

The recent (bear) flattening of the US yield curve to levels not seen since before the GFC, a move which has only accelerated in recent weeks as the stock market hit all time highs, has prompted some to question the strength of the US economic cycle, and others to ask outright how long before the curve inverts, signaling an imminent recession. Here, as Citi’s Jeremy Hale notes, just as “Dr. Copper” can sometimes be viewed as a stock market precursor, so “Professor Curve” (particularly when inverted or aggressively flattening) can be viewed as a signal of that policy is too restrictive relative to economic fundamentals (especially when using term premium suggests the curve should already be inverted). That said, during an expansion it’s generally normal for the curve to flatten, as the economy expands and the output gap closes, as shown in the chart below. This can be attributed to expectation of a higher Fed funds rate, but also a lower term premium, or more ominously, an inability to pass through inflation to the broader economy, leading to tighter financial conditions which ultimately manifest in an economic contraction.

Putting the recent 2s10s flattening in context (blue line on chart above), assuming this cycle started at the December 2013 steepness of 264bps, the curve has flattened for the past 60 months. On average, historic flattening cycles last for 2-2.5 years and flatten ~270bps from peak to trough. As Citi notes, we have flattened three quarters on the way there, or roughly 204bps so far in this cycle, therefore in comparison to previous episodes; perhaps this flattening dynamic is growing grey hairs… but it’s certainly not finished yet.

Indeed, if history repeats, then another 67 bps flattening is implied before we see an inversion of the curve. And while this cycle of curve flattening has been particularly slow, assuming a runrate of 40bps of flattening per year, then we could see a flat curve within 18 months (Figure 3, left). So “should we be worried?” Citi asks and answers that, rightly or wrongly, market participants with grey hairs would preach that all is well until the curve begins to invert. Ah yes, but that’s not the full story, as Citi explains below:

Sometimes inversion provides a timely signal for the economic cycle a la 2000, where Professor Curve predicted almost the ding-dong high in the SPX. However the 2006 episode of inversion dished up 7 months of pain for equity bears, with 18% further upside for the SPX. Ditto for the 1989 episode where equities continued to rally 22% into the 1990 recession (Figure 3, RHS). For now, we’re comfortable with the flattening dynamic with regards to other markets but would become increasingly cautious as the curve approaches zero.

In other words, once the curve inverts, it could either mark the top-tick of the market right there… or leave up to 22% more in equity upside before stocks finally crash.

Citi’s optimism – for now – aside, one notable distinction about the current flattening is that, unlike much of the curve move in 2016, this one has been driven by the front end, i.e. a bear flattening.  The front end of the US curve has significantly re-priced since September with the extension of the debt ceiling and the realization that fiscal easing could be achieved by the Trump administration.

Also worth noting is that while the short end has been driving curvature, the long end has been relatively rangebound, at least over the past year. What Citi finds particularly interesting is that even with ‘impending’ fiscal expansion in the US and balance sheet normalization by the Fed, term premia are actually still negative and suggest that the nominal 10y UST should trade closer to ~1.6% if the priced in forward short rate was at end pre-Election levels (Figure 6, LHS). This would suggest that there is, of course, a risk that the unusually low term premium – pushed to near record low levels by foreign central banks QE and NIRP, herding investors into long-term US duration – could suddenly rise; of note, perceived inflation risk could reverse its course quickly if inflation




suddenly trended up.

Some Fed estimates suggest that term premium is ~0.9% lower than it would be without the Fed’s large securities holdings, and that this term premium effect will gradually diminish with the reduction of the Fed’s balance sheet. But the Fed’s normalization has been well telegraphed; therefore the market has had the opportunity to anticipate this for several months (this goes back to another point made by Citi’s Matt King that the market has lost the ability to discount the future). In fact, the central bank depresses the term premium by limiting the uncertainty surrounding monetary policy. In short, Citi is skeptical of the material  impact that BSA may have on nominal yields given a relatively hawkish Fed. Furthermore, as the Fed continuing to tighten, it is possible the US economy is ‘locking in’ any gains that may be passed through to CPI. It is worth noting that in the last two cycles, US firms (and others) have had trouble – if not found it impossible – passing wage costs through to prices.

So even if a curve inversion does not spell imminent recession, what is next for the (shape of the) curve? Well, more of the same flattening it appears, as the curve takes more aggressive steps to flatten.

As Hale explains, the term premia and the forward curve suggests further flattening ahead (Figure 10 bottom LHS and top RHS). It’s also worth noting that in the past throughout Fed hiking cycles, the curve flattens on average between 100-125bps (Figure 10  bottom RHS), we’re currently around half way through on that basis assuming the Citi Fed call is right. But relative to other cycles at this stage, perhaps we have moved far enough for the time being. Citi’s fair value model using ACM term premium, the breakeven curve and a proxy for the r* also suggest flattening is close to fair value for now (Figure 10 top LHS).

But more medium term as the Fed keeps tightening, the curve will likely continue to flatten, and may even begin to bull flatten, should inflation expectations fall further. Ironically, Citi concludes, if the Fed wants higher long-term rates, and with them a steeper yield curve, it may need to hold back on further interest rate hikes until inflation surpasses the target/ backward driven inflation expectations rise.

Until then, however, expect people to keep talking about the flattening yield curve.



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