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Inflation Guy’s CPI Summary (January 2025)
We finished 2024 with a slightly soft reading, but we began 2025 with a hot reading. Now, my admonition last month about the volatility of December data applies also to January data, although less so in CPI than in some other indicators. However, averaging December and January is probably the right approach.
It still doesn’t look great even if you do that.
Let’s start with the market changes over the last month. You can tell from the table below that short inflation expectations as measured by the column on the far left have come up some, although not as much as you might have expected given all of the concern about tariffs. (For what it’s worth, in this table you can ignore the huge increase in 1-year breakevens – there really isn’t any such animal per se, and Bloomberg’s choice of bonds to use for the 1-year can change that a lot. Focus on the inflation swaps, which is a purer measure.)
The consensus estimates coming into today were for +0.30% on Core CPI and +0.29% on headline CPI. That represented an acceleration over the nice inflation data we saw in December (the best core inflation print since July!), but was expected to be attributable to one-offs such as wildfire effects. In fact, the number printed at an alarming +0.47% on headline and +0.45% on Core CPI, the worst since April of 2023. Here are the last 12 months.
But we are jaded these days because we’ve seen higher figures. Let’s back out a bit. Prior to COVID, we hadn’t seen a Core CPI number this high since 1992!
Okay, so some of these are one-off causes. And it is a January figure after all. Median CPI will be better. My calculation had it around 0.35%, but since the BLS changed weights for the new year in this report I am less confident in my estimate than usual. It should be close. And since last January was a big median print, that means the y/y median would drop to 3.66% or so on base effects. But there certainly doesn’t look to be any really marked improvement here.
Speaking of the reweighting of the CPI: this always sparks conspiracy theories even though the reweighting is very transparent. And the changes are pretty small year to year. Here are the changes from last January’s weights.
The BLS also announces categories that are being dropped or added or renamed. I never point those out because it’s really boring. At least, it is normally. This year, the BLS announced that the series for “Pet Food” has been renamed to “Pet Food and Treats.” Because who’s a good boy? That’s right, you’re a good boy.
Let’s look at some of the main culprits for the upside miss this month.
- Used Cars SA +2.19% m/m – We all expect some upward lift after the wildfires, but I am not sure this is due to that. New Cars CPI only rose +0.04%. But this is the highest m/m increase in Used Cars since 2023
A bigger concern with Used cars is the upward tilt in the overall price level. Remember that the spike during COVID (which happened thanks to the geyser of money that sprayed American consumers who had little else to buy, and few new cars being produced) was a big bellwether and/or driver (mathematically speaking) of the increase in core CPI post COVID. The unwinding of the spike in used cars pushed Core Goods inflation lower and lower, and dragged down Core CPI. But now it looks liked used car prices are again headed higher. This seems a good time to mention that M2 is also inflecting higher. The money supply is 40% bigger than at the end of 2019. Used car prices are only 32% higher. I think the deflation in used cars is over. (I’ve included M2 on this chart.)
AS a consequence of this, and despite apparel being -1.4% m/m (that’s one place tariffs could bite since we don’t produce any apparel in the US…on the other hand, there are lots of suppliers of apparel globally so absent a blanket tariff, we might not see a big effect), Core Goods CPI y/y went to -0.10% from -0.50%. As I’ve noted previously – ad nauseum, probably – to get inflation to 2% you need core goods inflation to stay negative, and pretty decently so. Core Services dipped to 4.3% y/y from 4.4% y/y, but obviously if that part is over 4%, and it’s the bigger part, you need Core Goods to stay flaccid.
- Health Insurance rose +0.74% NSA. Health insurance inflation jumps sometimes in January, so this is not something I’m worried about (plus, the health insurance number is really only calculated once a year and smeared out over the year). But it’s worth noting.
- Lodging Away from Home, +1.43% SA. Normally this is one of those categories that jumps around a lot and so we would expect a reversal next month, but with the wildfires in California I’d expect this to be buoyant for a while even if it is just the Western US being affected. But don’t forget that there are lots of people without homes still in North Carolina. On the other hand, if deportations ramp up a lot more than they currently are this is one place where pressure on prices could be relieved since many illegal aliens are housed in hotels at the expense of the local/state/federal government. That disinflationary effect, though, is months away at best, I think.
- Pharma had a huge month, rising 1.4% m/m SA. That’s the biggest monthly gain in decades. I suspect some of that is because pharmaceutical companies know that they are ‘on the X’ of President Trump’s ire after actively working against him in 2020. The President has recently been talking about how upset he is about US drug prices relative to the same drugs sold in other countries. This is a real threat – in his prior term, he talked about implementing a “Most Favored Nation” clause when it comes to pharmaceuticals (I wrote about it here: https://inflationguy.blog/2020/08/25/drug-prices-and-most-favored-nation-clauses-considerations/ ). So it strikes me as possible that pharmaceutical companies were raising prices in January partly so that they can cut them with great theatrics to show their ‘support’ for the President (and hold off most-favored-nation as long as possible). I do not expect to see this repeated next month, unless tariffs affect APIs (active pharmaceutical ingredients) in the near-term.
- Hospital Services were also high, at +0.95% m/m SA, but this is less unusual for that series which jumps around a lot like Lodging Away from Home. Still, that was the highest print since March.
On the good side – while Rent of Primary Residence was a little higher than last month (+0.35% vs +0.30%), OER was the same (+0.31%) and rents overall continue to decelerate. However, they are decelerating at a declining rate. It looks like the dip that I expected is never going to happen, as the growth rate of rents looks to be converging with our model in the high 3s. And it doesn’t need to be repeated, but I will anyway, that there is no sign of broad deflation in rents coming.
Food and energy were additive this month, although less than I expected. Food at home was +0.46% m/m, and I expected about double that. Eggs were +13.8% m/m (NSA), and +53% y/y, and are getting a lot of press. But that’s not an inflation thing, that’s a lack-of-chickens thing and egg prices will eventually come down (in, approximately, the time it takes a chicken to get to adulthood). Food away from home was relatively tame at +0.24%.
So what’s the big picture?
What we saw today was mostly the trend. I continue to think that the new ‘middle’ on Median CPI is the high 3%s, low 4%s area, with occasional forays above and below that level. Over the course of 2025, as tariffs are implemented, we are likely to see a slightly higher run rate. Tariffs are a one-off, and they aren’t a large effect unless applied in a blanket way to all imports. Remember (and review my recent blog https://inflationguy.blog/2025/01/29/trump-tactical-targeted-tariffs-a-reminder-of-the-impact-of-tariffs/ and podcast https://inflationguy.podbean.com/e/ep-131-how-tariffs-affect-you-three-things-you-maybe-didnt-know/ on the topic) that despite what some hyperventilating Congresspeople say, consumers do not usually pay the majority of a tariff except in narrow circumstances where demand for the good from that particular supplier is inelastic. If the Trump Administration imposes a blanket tariff of 20% on all imports, with no exceptions, it might cause an increase in inflation of 0.5%-1.0%. But that’s a one-time (level) effect unless tariffs keep being ramped higher, and the effect gets smaller the higher the tariff goes (a 1000% tariff will not raise prices any more than a 900% tariff, because at that point we aren’t importing anything). So, all else equal, we should expect slightly higher inflation in 2025 than we previously would have expected, and probably for the first part of 2026, but then the tariff effect will be over and the level of inflation we settle in at will be once again driven mainly by money growth.
On that score the news isn’t great, with M2 rising at a 5.8% annualized rate over the last quarter and 3.9% over the last year. 4% would get us to 1.5%-2% inflation in the long run, probably; 6% will get us into the high 3s, low 4s. Some think that if inflation ends up ratcheting a little higher, the Fed might raise interest rates again. But monetary policy has very little control over inflation that is caused by tariffs and it would make no sense to reverse course for that reason. This just accentuates how bad the box is that the Fed got itself into by making a nakedly political ease in the middle of last year. Tightening because of tariffs has no economic justification; it would look nakedly political again. I would be surprised if overnight rates went higher from here. Of course, I’d also be surprised to see them going lower especially since tariffs are also good for domestic economic growth.
So there will continue to be lots of economic volatility from here, but stasis appears to be high 3s, low 4s. Still.
Framing Home Price Inflation
The ever-increasing cost of homes obviously causes a lot of people a lot of angst. Chief among those groups, naturally, are the people who are planning to buy a home but do not yet have one; and, since higher home prices are very highly correlated with higher rents, renters too are alarmed that the rent is too damn high! (if that reference eludes you, educate yourself at this link: https://www.youtube.com/watch?v=OUx_32ABtw4 )
Right behind the people who have to actually buy homes and rent apartments, though, are the economists who seem to be perennially alarmed that home prices are “in a bubble” again. Certainly, if you look at nominal home prices (represented here by the S&P Case Shiller U.S. National Home Price Index, normalized like all of the charts in this article so that December 31, 1989 = 100 and the latest figure is for the end of September 2024) then you can see the cause for concern. Home prices are up 75% since the peak of the home price bubble of the late 2000s! If a house at $241,000 was in a bubble in 2006 (and subsequently declined in price to 175k), then surely it’s in a bubble if it’s now at $425k?
You can see in this chart the rapid acceleration in 2021-2022, and that should be a clue about one of the things that is going on with home prices. The overall price level is a lot higher than it was in 2006; the dollar simply doesn’t go as far as it did back then. Indeed I’ve chronicled how, thanks to the supercharged increase in the money supply, consumer prices are up 23% since just before COVID. Obviously, then, we have to adjust the dollar price of a home for the change in the measuring stick (the dollar) itself. Here are real home prices.
This still looks like a bubble, if real home prices are 13% higher than the bubble peak. After all, homes are unproductive real assets. Over a long period of time, home prices have risen less than 0.5% per year after inflation. In this way a home is like a lump of gold. Ten years from now, the lump of gold is still a lump of gold and so you would expect the real return to be roughly zero (you have the same amount of stuff at the end that you started with). In the case of home prices, there is deterioration of the housing stock over time but also new construction and homes have historically gotten larger and more comfortable, so some small drift higher in real prices makes sense. But home prices since 1989 are up 70% in real terms, when they should be up roughly 25 * 0.5% = 12.5%. And since the 2006 peak, we’d expect 9% (18 years x 0.5%) would represent a similar peak. We’ve risen more than that!
So, definitely a bubble, right? That deflation everyone keeps promising us is imminent, along with the collapse of banks and all the other stuff? Not so fast; there is one other important thing to consider and that is household formation. Or, rather, household formation compared to housing-unit formation.
We start by imagining what could plausibly push real home prices above or below a long-run flattish trend, that would represent a legitimate effect and not a bubble. What immediately comes to mind for me is the fact that for at least the last few years we have seen a massive increase in the US in the number of heads over which we need to put roofs. Something in the ballpark of 10 million new residents need roofs, and we surely have not constructed that many new roofs. For a long time, I’ve been highlighting this as one really good reason to not expect rental or home price deflation: the demand relative to the supply is out of whack. However, it turns out that we don’t actually need to rely on the ‘unofficial’ increase in the population to conclude that the “bubble” isn’t so bubbly.
The chart below, covering 2004 to the present, shows the real home price (the second chart above) on the y-axis. On the x-axis, I have a ratio of the number of households in the United States (source: US Census Bureau) divided by the total number of housing units in the country (source: US Census Bureau). As the ratio moves higher, it means there are more households for every housing unit or alternatively, fewer vacant units. I only have the housing unit data back to 2004, as that’s what was on Bloomberg.
There is a pretty clear relationship here between real home prices, and the occupation ratio. I have highlighted two areas. One, in red, is the January 2006 through June 2007 period – sort of the teeth of the housing bubble. Those points are well above the line, suggesting that prices were high relative to the occupation ratio. In fact, January 2007 is the point that is the highest above the regression line. On the other hand, we have the most-recent point in green. This is right on the regression line. Yes, real home prices have gone up a lot. But that’s mostly because the construction rate of new housing units has not kept up with household formation.
As an aside, the three points at (0.91, 130) or so are from mid-2020, when there was a surge of household formation but home prices (and rents) were being constrained by the lockdowns. In retrospect, it was a great time to buy a house!
Note that the charts above do not include undocumented residents in the US, except inasmuch as the Census Bureau is including them. Since the total increase in households since January 2021 is only about 6mm…and for the prior 4 years, the increase was 5mm…I am fairly confident that the recent surge in illegal immigration is not reflected on this chart. Ergo, you could make the case that home prices are too low in real terms. If every 5 illegals form one household, the ratio would rise from 0.912 to 0.926, and we would be off the chart to the right-hand side.
Now, this does not mean that real home prices will not decline. In fact, I am very confident that at some point they will, as building catches up with household formation. That does not mean that home prices will fall in nominal terms, however; I suspect that what is more likely to happen is that over a number of years, home prices will drift sideways to slightly higher while overall consumer prices continue to rise. But, if 10 million illegal immigrants are deported, the building of new units will catch up a lot more quickly and nominal prices and rents could decline in that case.
If that happened, rents really would be ‘too damn high’. And that is one very big reason that mass deportation is not inflationary. It also is not very likely; I have the over/under at 1mm deportations.
Inflation Guy’s CPI Summary (December 2024)
It is important – and I say it every year – to remember that when we are looking at economic data from December (and in many data series such as Employment, January as well) there are massive error bars around the numbers. The government doesn’t report error bars, but they should. Frankly, when it comes to Nonfarm Payrolls, I barely glance at the number because it just doesn’t mean very much.
The problem isn’t so dramatic in CPI at the headline index level, because the main sources of volatility in the index also happen to be the ones that provide all of the seasonal adjustments, so we tend to miss estimates roughly as often in December as in other months. As we go through the numbers today, however, you’ll notice a bunch of things swinging one way after swinging the opposite way last month. That’s the sort of thing that can easily be caused by the placement of Thanksgiving, so you can see reversals from November’s number to December’s. I am not saying that everything in the CPI report today is infected by that effect; just keep it in mind.
Now, while I say the ‘problem’ of seasonal volatility isn’t as bad in CPI at the headline level, recognize that December sees the most-severe seasonal adjustment to the headline figure. Here are the seasonal adjustment factors for 2023 (they don’t change much). A number below 1.0 means that the seasonally-adjusted headline number will be higher than the nonseasonally adjusted number, because the seasonal pattern ‘expects’ the weakness, and vice-versa. You can see that December is the month furthest from 1.0. What you can’t see from this chart is that if you want to get technical about it, December is also the only month for which we could really reject the null hypothesis that the adjustment factor is 1.0…in other words, the only month where we are really confident that the effect is to cause the NSA CPI to be lower than the average month. November, maybe.
As an aside, this is why April maturity TIPS tend to have higher yields than January maturities. The January TIPS mature to an index that is an average of October and November CPIs, while April TIPS mature to an index that is an average of January and February CPIs. So April TIPS always get an extra December CPI in them, and if there’s one month you don’t want, it’s December. So April TIPS have to have a slightly higher yield to entice people to hold them.
Right, that’s a big prelude discussion. Summing up: don’t get too excited either way with this number. More important is that the overall market has been selling off. 10-year breakevens have risen 14bps, and 10-year real yields have gone up 26bps. How much of this is because of a fear that inflation is turning, is unclear. But in December, the overall data was pretty close to expectations. Core inflation came in at +0.225% m/m, compared to expectations of +0.25%, which is less dramatic than it looked when rounded and it printed at 0.2% vs expectations of 0.3%. A small miss lower, and to be fair the best core number since July.
Headline was only 0.04% NSA…which gets adjusted to +0.39% when the seasonally-adjusted number is reported. See what I mean? So we look at the y/y numbers, which basically replaces last December with this December (thus neatly avoiding the seasonality issue). Y/Y headline CPI rose from 2.73% to 2.90%, and Y/Y core fell to 3.25% from 3.30%.
You may notice that none of those numbers looks like it’s at 2%. Nor is Median CPI, which was (my estimate) +0.31% m/m, the highest since September. If I’m right about that print then the y/y would drop to 3.86% from 3.89%.
So on the macro side, top-down, this does not look like the sort of data that the Fed was expecting when it started easing in September. Since in my opinion this has been eminently foreseeable for a long time when you looked at what was driving CPI, the conclusion must be either that the Fed is just incompetent when it comes to inflation forecasts, or it doesn’t care about inflation, or the rate cut had nothing to do with economics and was just a political gambit to get Harris elected. None of those answers is flattering. I suspect answers #1 and #3 are the main drivers of the most-recent policy error.
The good news in the inflation figures is that there’s no one major group that still looks alarming.
When we drill down to the monthly data this month…that’s where you see the seasonal volatility. For example:
- Used Cars was expected to be roughly flat. It was +1.2% after +2.0%.
- Rents rebounded; OER and Primary Rents were +0.31% after +0.23% and +0.21% respectively last month.
- Lodging Away from Home was -0.95% this month; it was +3.16% last month.
- Airfares were +3.93% this month; they were +0.37% last month.
- Car and truck rental +0.58% this month; -2.99% last month.
- Baby Food +0.42% this month; -0.12% last month.
- Medicinal Drugs +0.08% this month; -0.10% last month.
- Doctors’ Services was lower, +0.06% vs +0.28% in November; but Hospital Services were higher at +0.23% compared to 0.00%.
A few broader observations. Core Goods and Core Services both continue to move back towards zero: goods from underneath and services from above. CPI for Used Cars is still -3.4% y/y, and I’d expect it to slowly recover from the spike and reversal stemming from COVID. But we now have an extra factor, and that’s the devastating California wildfires. There are two things you see burned out in every picture. Vehicles, for one. Used and New car inflation is going to turn higher, and maybe quite a bit, going forward as people in California need to replace their wheels. Over the medium term, the dollar’s strength would help keep core goods inflation tame and even slightly negative, but thanks to the wildfires we are likely to see core goods back above zero shortly.
And the other thing you see burned out, of course, are houses. Primary Rents have been slowly converging with our model, but rents are going to get goosed in California immediately and that effect will be smeared out because of local laws against ‘price gouging’ that prevent landlords from hiking their rents immediately to the equilibrium level implied by lots more demand and lots less supply. So they’ll hike, but it will take longer. This is mainly a California effect, naturally, but it will be large enough to affect the national numbers.
Incidentally, you’ll also see these in Lodging Away from Home inflation not just in California but in the entire western US. And maybe further, since remote work makes it possible to temporarily relocate almost anywhere. Federal support of the displaced will ensure that is not a 1-month effect. So in shelter, January and February (and beyond) numbers are going to be a lot more important than today’s release.
I am sure that will be used later to argue that “this inflation in 2025 is all due to the wildfires,” but we should remember that inflation in 2024 was (at best) leveling out and possibly hooking higher again. Broad core inflation ex-shelter has now risen four months in a row. It isn’t alarming, at 2.12%, but it isn’t just shelter keeping inflation above target and the story in early 2025 won’t be ‘all about shelter and cars.’ Supercore is also improving, but it isn’t going to pull the overall CPI down to target if Shelter doesn’t keep decelerating and as Core Goods goes back positive.
Supercore is indeed looking better, but we still have wages rising at 4.3% y/y. Remember that wages and supercore are modestly cointegrated. Or, in English, supercore is where wage-driven inflation tends to live. Wage growth needs to soften a lot more in order to get supercore back to target-like levels.
Again, all of this is December and in January we have had a massive natural disaster that will affect inflation data as soon as next month – and for months going forward. This will obfuscate the fact that the Fed already made a second policy error (after the COVID-era error of adding too much liquidity and not pulling it back quickly enough), dropping rates prematurely and letting money growth re-accelerate (M2 y/y is at 3.7%, but annualizing at 4.7% over the last 6 months and 5.8% over the last quarter ended in November). The bottom line is that the December inflation data is just not very important. What happens next…and what is already happening…is the story that will drive inflation and markets in 2025.
(Admin note: I missed doing the CPI Report podcast last month but it will post this month again! In roughly an hour, I suspect).
Inflation Guy’s CPI Summary (November 2024)
(Administrative Note: There will be no podcast today.)
Last month’s CPI had set up an uncomfortable situation for the FOMC, where too-high inflation was colliding with a Fed that had launched too soon into ease mode – for what appears to be mostly political reasons although there is some mild weakness in economic growth. Preemptively attacking slightly soft growth, in a time of frothy markets and CPI that is sticky at a too-high level, might still turn out to be a clever policy move…but that’s a narrow window.
So the Fed would like to see softer CPI, which validates their professed confidence that it is returning to quiescence like an obedient puppy that has been scolded by the wise people in the Eccles building. Wouldn’t we all like that?
There is some cover provided by inflation markets. Before today’s number, here are the most-recent prints taken from the CPI ‘fixings’ market, showing that the market is pricing year-over-year headline inflation to be at 2.14% by April’s print (in May), before rebounding as those quirky low prints from earlier this year are pushed out of the average.
But is that all there is? If headline can only get to 2.1%, briefly, despite soft energy markets, then can the Fed really be very optimistic that core (in the mid-3s) and median (in the low 4s) will show inflation fully tamed? It’s hard to believe. So the Fed has a lot at stake here and needs inflation to keep decelerating. Not just on a y/y basis; the m/m numbers need to start looking better. We have had three straight uncomfortably high core CPI readings in a row after the it-now-seems-like-an-aberration-low blip earlier in the year, and four straight median CPI figures. Consensus before today’s report was for 0.26% on the seasonally-adjusted headline figure and 0.28% on core. Neither of those is what the Fed is really looking for. Worse, they didn’t even get that.
These are not alarmingly high, 0.31% when the market was looking for 0.26% or 0.28%, but keep in mind that our recent benchmark for alarm has been a bit skewed by a period of time when the forecasters were missing by 0.1% and 0.2% on a regular basis! It’s a modest miss. But it’s a modest miss on the wrong side.
Core goods continued to rebound slowly back towards 0%, now -0.6% y/y, while core services slowed further to 4.6% from 4.8%.
The rise in core goods was driven significantly by a second monthly jump in used car prices, +2.72% m/m after +1.99% last month. The lengthy mean reversion of used car inflation is over. That was one big factor keeping core goods prices submerged, and without it (New Car prices were +0.58% m/m also, for what it’s worth) core goods should go back to roughly flat or slightly positive. The strength in the dollar would normally keep core goods from getting too out of hand, but of course if you believe Trump’s tariff threats – and even if you don’t, but figure it implies more nearshoring – then you should expect Core Goods to be positive going forward. Core services has a lot to do with rents, which this month were much lower than last month’s change (0.23% m/m vs 0.40% last month on OER; 0.21% on Primary rents vs 0.30%). The deceleration here continues…although remember that last year we had been promised healthy deflation in rents this year. Never got even close to that.
Now, there is some good news here. Some of the overall miss this month can be traced to a 3.16% m/m rise in Lodging Away from Home. This means that Core Services ex-Shelter (“Supercore”) had a healthy deceleration and that’s good because that’s the sticky stuff. It’s still far too high, though.
Similarly, the more-well-behaved measure of Median CPI was up only 0.255% m/m (my estimate), which brings y/y Median to about 4.04% y/y (was 4.08%). This looks a little better? Anyway the lowest m/m since June!
I don’t want to make too much of this…the fact that Lodging Away from Home was a significant part of the miss doesn’t make this a great number. Nor does the continued deceleration in rents. 0.255% for twelve months would still leave Median CPI over 3%. And the major groups look alarmingly normal without four of the categories above target and four of them below target.
And I guess that leads us to our conclusion. I had said last month that I thought the Fed would find a reason to hold rates steady at this upcoming meeting, rather than continuing to cut. But markets don’t believe that, and market pricing implies a good chance of a further 25bps cut at this month’s meeting. To be fair, Fed speakers have been seeming to guide markets in that direction with expressions of concern about the weakening labor market. But I think there’s something worse than investors starting to be concerned that the Federal Reserve makes policy moves on the basis at least partly of political ideology. After all, that’s at best an every-four-years thing. What would be worse would be for investors to believe that the FOMC is content with inflation above 3%, and willing to focus on employment if there’s even a hint of weakness there. That’s the wrong approach, because employment is cyclical while inflation isn’t. While I don’t believe that ‘inflation expectations anchoring’ is a real thing we should be concerned about, ‘Fed credibility’ is. While inflation was decelerating, the Committee could, with some hand-waving, pretend that it was addressing both inflation and growth and merely getting ahead of the recession. If inflation is hooking higher again, that story will be harder and harder to sustain.
I don’t know that core or median are yet hooking higher. But they’re no longer placidly declining. My guess is that the Fed will pause the rate-cutting campaign shortly, but stop the balance-sheet runoff, and try to play both sides of the net. The game is getting much harder from here.
Inflation Guy’s CPI Summary (October 2024)
I said two months ago that I didn’t think the Fed should ease, but they would anyway. And they did, by cutting overnight rates 50bps. Then last month I said “Getting rates back to neutral, around 4% or so, is not a bad idea as long as quantitative tightening continues. It isn’t the best idea, but it’s not a disaster. But this raises the stakes for the next FOMC meeting… I suspect 25bps is the only choice they can make which will make almost everybody equally unhappy. There’s more data to come before that meeting, but the FOMC’s path has narrowed considerably as inflation remains sticky.” And the Fed, on cue, cut rates 25bps.
But the Fed is getting into an uncomfortable position now, because inflation looks like it has leveled off. As I have said for a while it likely would.
We will get to that. First let’s look at the number.
The economists’ consensus has been drifting higher in recent days, as data on used cars was suggesting that component would be an add in October. Consensus going in was for +0.21% headline (SA) and +0.28% on core. The actual numbers were +0.24%/+0.28%, so pretty close to the consensus with y/y headline inflation at 2.58% and y/y core at 3.30%. It doesn’t seem to me, though, that the chart of core CPI for the last year is particularly soothing. More and more it appears that May-June-July were the outliers, and we are hanging out around 0.3% per month on core inflation.
Also, my early estimate for median inflation is 0.296% m/m, leaving y/y basically unchanged at 4.09%.
Used Cars was indeed high, at +2.7% m/m. But the real problem with Used Cars isn’t this month. The real problem is that for two and a half years Used Cars has provided steady disinflation as the COVID spike (caused because new cars were not being produced as quickly thanks to supply chain problems, but the deluge of money meant that people had lots to spend and wanted cars dammit) ebbed…but that game appears to be about over.
So if you want to get inflation lower from here, it’s going to be a challenge to get it from core goods, which was steady y/y at -1% this month but only because Apparel had a large decline. Core goods is likely to head back to small deflation or small inflation (with the dollar’s recent strength, small deflation is the better guess), but higher from here. We have known this for a while. The heavy lifting is going to have to come from shelter, or supercore, going forward.
So as for shelter…OER was +0.33% m/m in September but +0.40% m/m in October. Primary Rents were +0.28% last month and +0.30% this month. The y/y disinflation is continuing, but still no sign of the hard deflation we were promised.
The good news here for 2025 is that if Trump’s plan for mass deportations happens, and if “mass” means millions, then some of the pressure on shelter that developed over the last few years as ten million additional heads needed roofs over them will abate. Then maybe we can get shelter inflation lower. There is a modest additional “if” part, though, and that is “if landlord costs can stop increasing.” Our bottom-up landlord-cost-driven model has primary rents eventually converging just south of 4%. Better, but still not great.
So that leaves supercore, which unfortunately ticked higher this month.
The problem there also remains the same. Stop me if you’ve heard this one, but wages are moving only slowly downward, and supercore is where the wage/price feedback is the strongest. The red line below is Bloomberg’s calculation of supercore and the other line is the Atlanta Fed wage growth tracker. And the problem is that median wages don’t tend to move drastically differently than median inflation, which as we have discussed is proving sticky.
If core goods is no longer declining, and shelter isn’t doing the heavy lifting of deflation, and if core-services-ex-shelter (supercore) is leveling off…then gosh, that looks a lot like high-3s-low-4s village.
As an aside: I have been saying ‘high 3s, low 4s’ would be where inflation settles in…and I’ve been saying that for a couple of years. Even I am a little amazed that I haven’t had to tweak that forecast much, other than to allow that we might briefly dip below that if housing followed the dip-and-bounce that our model had. I don’t want to put on false humility, because I was saying that inflation would stay sticky and too high long before anyone else was saying that, and I had the correct reasons and I think I’ve guided readers and clients well. But getting the landing spot right, that far in advance, also clearly involved some luck. I am saying that partly to keep the Fates on my side. But you should also know that someday, it might turn out that ‘high 3s, low 4s’ needs to be adjusted. And I’ll still consider this a pretty good call!
The Fed’s actions can clearly affect that eventual equilibrium level, but it doesn’t look like they are yet taking this seriously. The game isn’t over and there will be more CPI reports and more after that. But for now, this looks like a policy error – or worse, a blatant attempt to influence the election – and unless something unexpected happens with prices it looks like the Fed is going to have to choose between the right policy move (which means continuing tight policy) that appears to be political, or continuing to loosen policy so as to not appear to be political, and temporarily surrendering on inflation. I suspect that the FOMC will vote to keep rates steady at the next meeting.
By the way, if you care about the crypto space at all and haven’t read my column on stablecoins, you should, and you should be sure to circulate it. The column is here.
Inflation Guy’s CPI Summary (September 2024)
I already have my title for today’s CPI Report podcast (you can find all of my podcasts at https://inflationguy.podbean.com/ ). I’m going to call it ‘Inflation Peek-a-Boo.’ With today’s number being definitely on the ‘boo’ part of things.
First, a review: last month, August’s report missed higher. But the miss was mostly due to the quirky jump in Owners’ Equivalent Rent. Outside of that, CPI had been okay – not great, but moving in the right direction. The Fed eased 50bps anyway (at the time I said the miss in CPI wouldn’t deter that), setting up what will be the headlines for the next week now. Because of the strength in the Employment report, some people were already questioning whether the Federal Reserve made a policy error in starting to move rates back towards neutral so quickly. But as long as inflation was heading back to their target, neutral would still make sense even if the jobs market wasn’t weakening (as it still looks like it is, outside of government spending). The questions now get a little more pointed because today’s CPI miss higher was not due to a one-off.
The consensus of economists coming into today was for a +0.10% rise in the seasonally-adjusted CPI. Now, energy this month was expected to be about a -0.17% drag on the number (it turned out to be 13bps rather than 17bps), so this low m/m print was scheduled to be mostly due to last month’s slide in energy prices. Still, decent optics especially with the last CPI we’ll see before the election. Economists saw +0.24% m/m on core. The actual figures were +0.18% m/m on headline CPI and +0.31% m/m on core CPI. This is unfortunate, because the y/y Core CPI number rose, instead of being flat, to +3.26% y/y. Moreover, the overall shape of the monthlies…well…see for yourself.
We have to be careful about the cognitive bias that makes us see stories and trends where there aren’t any, which is why it’s so very important to not focus on one month’s number. Or two. But if you look at this chart, it sure looks like the outlier might not be August and September, but May and June. Doesn’t it?
Ditto that for the Median CPI (last point estimated by me at +0.33% m/m).
Again, it could be a cognitive error but this sure looks like we’re pretty steady around 0.3%. If sustained, that would be in the ‘high 3s’, and it is time for my monthly reminder that I think median inflation will settle in the ‘high 3s, low 4s’ although it could dip into the low 3s first. (It’s looking more and more like the dip into the low 3s may not happen, as we get further along in the adjustment of rents.)
So where did this high miss come from? It wasn’t from OER and Primary Rents, which were back into their slowly-declining mode. OER was +0.33% m/m, and Primary Rents +0.28% m/m. Year over year, Primary Rents are down to +4.8% y/y. My model has them eventually ending up around 3.8%, after dipping lower. But they should be dipping right now, and they’re not. They may simply be converging on that 3.8%ish level.
But here’s an interesting chart. Remember how I have been saying for a long time that a good part of the overall deceleration in inflation had come from Core Goods, which would not continue to plumb new deflationary depths? This month, Core Goods was only -1.0% y/y, versus -1.9% y/y the last time we got these numbers.
Now, that doesn’t look wildly inflationary but if core goods inflation goes merely back to flat, then core services needs to do a lot more heavy lifting. Core Services did drop to 4.7% y/y from 4.9% y/y. But flat on core goods and 4.5% on core services wouldn’t get us back to the Fed’s target. Not even close.
In the core goods category, there were rises in Used Cars (+0.3% m/m) and New Cars and Trucks (+0.15% m/m), but nothing terribly out-of-the ordinary. Similarly, in core services there wasn’t much out-of-the ordinary. The problem is, ‘ordinary’ looks like it’s not at the Fed’s target. Medical Care Services were higher, with Doctor’s Services +0.9% m/m and Hospital Services +0.57% m/m. Airfares rose +3.16% after +3.86% last month. Motor vehicle insurance continues to rise, +1% m/m, with the only good news being that the y/y figure on insurance is now down to ‘only’ +16%. But +1% per month still is a rate above 12% per year – not too exciting.
Car and truck rental was also +1.2% m/m. So, in transportation outside of the cost of energy itself, it was a rough month (but that’s what happens, I guess, when you try and force people to buy electric cars when they don’t want them). But it wasn’t just transportation goods and services, either. This is the time of year when the jump in college tuitions happens. And it looks like the jump in tuitions this year is the largest since 2018. The seasonally-adjusted numbers will smooth this out, but that means tuition is going to be adding a little more over the next 12 months than it added over the last 12 months.
This is also somewhat surprising. Normally, when asset markets are going gangbusters we tend to see smaller increases in tuition because endowments are doing well and the financial model for colleges is basically (exogenous cost increases we don’t really try to control, minus endowment contributions or federal support, divided by number of students). If markets are doing well and college tuitions are still accelerating, it implies an increase in costs. My guess is that insurance is part of that, but so will be teachers’ salaries. Provision of education is ‘labor intensive,’ and wages continue to refuse to slip back down to the old levels. This is also the reason that Food-Away-From-Home was +0.34% m/m and continues to hang out around +4% per year.
And, as a result of wages refusing to moderate, ‘supercore’ (core services ex-shelter) also continues to refuse to slip back to the old levels.
The bottom line is that this number is not high because of any weird one-offs. In the same way that last month’s number was generally okay in a balanced way, outside of rents, this month’s number is generally less pleasant, in a balanced way. I don’t think we are at the start of another spike higher in prices. But we continue to aim for ‘high 3s, low 4s.’
And this will be an unfortunate story for the Fed as they will be peppered with questions about a potential policy error. I will repeat here what I said last month:
“To be clear, I personally do not think the FOMC should stop quantitative tightening and there’s no hurry to cut rates. The fight against inflation is not only unfinished, it won’t be finished for quite a while…and an ease now will just make it harder later. But that’s what I would do. What I am saying is that the Fed is not likely to change course on the basis of this number.” As expected, the Fed did cut rates 50bps. I am not sure this is necessarily a terrible policy error, although starting with 50bps now looks like an obvious mistake. Getting rates back to neutral, around 4% or so, is not a bad idea as long as quantitative tightening continues. It isn’t the best idea, but it’s not a disaster. But this raises the stakes for the next FOMC meeting. If the Fed skips the meeting, it will be a tacit admission that the first move was a mistake. If the Fed piles on another 50bps, it will show they are terrified about growth or simply don’t care about inflation. I suspect 25bps is the only choice they can make which will make almost everybody equally unhappy. There’s more data to come before that meeting, but the FOMC’s path has narrowed considerably as inflation remains sticky.
Inflation Guy’s CPI Summary (August 2024)
Let me start with the punch line, which I think will not be a very common take: this report does not stop the Fed from easing 50bps next week, and honestly doesn’t really even hurt the chances very much.
The inflation swaps market was pricing in 0.05% on an NSA basis, roughly 0.13% on a SA basis. Actually, that market was better offered, with traders either expecting a weaker number or wanting to hedge that possibility more than the chance of a stronger number. Economists gathered around a consensus of 0.16% for headline, and 0.20% on core CPI. The actual print was +0.19% m/m on CPI, and +0.28% on core CPI, bringing the y/y numbers to 2.59% and 3.27% respectively. It was the worst monthly core print since April, and the initial market response was predictably poor.
My early estimate of Median CPI for the month is +0.26% m/m, bringing the y/y median to 4.16%. (Sharp-eyed readers will note that neither headline, nor core, nor median CPI are at the Fed’s target).
Interestingly…at least, if you’re the kind of square who finds the CPI interesting…the y/y changes in Core Goods (-1.9%) and Core Services (+4.9%) were steady. That’s the first time in a while we’ve seen that.
Wow, right? A rounded +0.3% on core CPI takes the Fed out or at least puts them on a 25bps cut, right? Well, not so fast. The monthly change in Owners Equivalent Rent immediately jumps out at you (at least, if you’re the kind of square who looks at these things deeply) as +0.495% m/m. That’s the largest m/m change since February, and it hasn’t been appreciably higher on a regular basis since early last year.
That looks a little quirky, especially following the recent dip. And it looks suspiciously like a one-month-lagged chart of the m/m changes in Primary rents, which dipped a few months ago before paying it back last month.
That looks to me like some weird seasonal wrinkle. The y/y shelter figures are still declining. But, if you look carefully, you can see that the rate of improvement is slowing. And maybe my math isn’t so good but it doesn’t look like these are converging on deflation.
The rents data are therefore both the good news and the bad news. The good news is that in this month’s CPI, it was a miss higher only because OER had the quirky jump. I’ll get into more of the number in just a second, after sharing the bad news: there is nothing in the trajectory of rents to suggest that the operating theory of many forecasters for a long time – that rents would soon be in deflation – is going to happen. Heck, as I keep pointing out the trajectory of rents is higher than my bottom-up rents model, which suggested we should be bottoming out around 2.4% y/y right about now. And my forecast was on the very high side of what people were saying.
But let’s get beyond rents. The ‘big sticky’ is always important to watch, but outside of rents things looked pretty good this month. There were some outliers on both sides (Lodging Away from Home +1.75% m/m, Airfares +3.9% m/m after 5 straight declines; Car/Truck Rental -1.5% and Used Cars -1% m/m), but core CPI ex-shelter declined to only +1.72% y/y. The list of monthly categories shows a long list of categories whose price fell m/m: jewelry, car/truck rental, used cars, energy services, miscellaneous personal goods, personal care products, household furnishings and operations, medical care commodities, medical care services, recreation, communication, and a few others. Not that we are headed for deflation, but look at this distribution of y/y price changes. I haven’t shown this for a few months.
Again, this doesn’t look like something that screams deflation, but the far right tails are all moving left. There’s still a cluster around 4-5%, which shouldn’t be surprising since Median CPI is at about 4.2%. Do also notice that there aren’t a lot of categories showing deflation on a y/y basis, but if you take out shelter from this you get something that looks more disinflationary: a mode around 4-5%, but tails to the downside. In inflationary periods, the tails stretch to the upside, and we had that for a while; but the signature of the overall distribution is encouraging.
The conclusion, as I said up top, is that if the Fed was leaning towards cutting rates 50bps next week this is not a number that should change their collective mind very much. Unless the Fed cares only about the top line numbers, this isn’t an alarming report. It isn’t the lovely deflationary print that bond bulls wanted, but that wasn’t really in the cards. We’re arguing over a couple of hundredths in the monthly core print, and that is entirely attributable – still – to shelter. In fact, there are signs of broadening disinflation. To be clear, I personally do not think the FOMC should stop quantitative tightening and there’s no hurry to cut rates. The fight against inflation is not only unfinished, it won’t be finished for quite a while…and an ease now will just make it harder later. But that’s what I would do. What I am saying is that the Fed is not likely to change course on the basis of this number.
The y/y figures for headline CPI are going to keep dropping for a few months here, partly on base effects and partly because energy prices are very weak. A perfectly reasonable trajectory for monetary policy (if you think that rates ought to at least be eased back to neutral in the 3-4% range) would be 25bps next week, and then larger cuts in a few months when the headline inflation number is lower and the unemployment rate is higher. The only problem with that approach is that an acceleration in the pace of easing later may look like concern, which is why some FOMC members favor getting out of the gate quickly. As I said, there’s nothing here that should stop that.
But median inflation is still headed for ‘high 3s, low 4s,’ with a potential dip into the low 3s before a reacceleration. The hard work on inflation is still ahead, and it is going to get harder now that we are in a recession.
Inflation Guy’s CPI Summary (July 2024)
It was only a few months ago (with the March CPI report in April) that I was talking about a ‘Potential Pony Situation’ in my podcast when, after an unsettling Core CPI, I pointed out that the Median CPI was much less disturbing. Trying to tell the story of the economy is about figuring out where the underlying trends are, and trying to figure out what you can ignore as ‘noise.’ Back then, it was clear that inflation was heading lower, but not as fast as people were saying, so the bad core CPI was off-putting. It messed up that story. But because we were focused on Median CPI, that month was not so unsettling and we focused (successfully I think) on the fact that inflation was decelerating…but not collapsing back to target imminently. Fast forward, and the story we are looking at coming into today’s CPI is that inflation is still declining, but people are probably getting a bit out over their skis in anticipating (again) a rapid collapse in inflation after a couple of weak CPI prints. Once again, that’s not the story the data is really telling, but deviations from that belief are likely to be painful.
For what it’s worth – I saw a lot of commentary this morning about how “PPI is encouraging,” or “PPI means this or that.” No one in the inflation trading community cares much about PPI. There are some elements of the PPI report that can help with some of the parts of other inflation reports, but the overall number has very little correlation (and no lead) with the CPI. You and I are exposed to CPI. The Fed looks at consumer prices. My best advice about PPI is to ignore it.
When CPI actually came out, it was a touch better than expected on the surface. Economists had been looking for +0.19% m/m on core, and got +0.155% on the actual number. What was fascinating to me was the market reaction. Equity futures appear to be completely flummoxed by an as-expected number, vacillating around unchanged 20 minutes later as I write this. I think this tells you something, actually – folks coming into today weren’t trading the actual number but rather planning to trade what other people thought about the number. Everyone thought everyone else knew what a higher-than-expected or lower-than-expected number would do. An as-expected print means you have to dig into the details, and equity guys don’t like details. They like big pictures. Thick lines. Crayons.
So let’s look at some pictures. Here are the last 12 core prints and the 8 major subcomponent pieces.
The first thing that jumped out at me was that core goods again plumbed new 20-year lows. Yes, that’s 20-year lows, as the following chart shows. -1.9% y/y.
Folks, I am still waiting for the turn and I say every month “surely, it can’t go lower than that.” So far, so wrong. The dollar is no longer strengthening in a straight line, and hasn’t been for a while. If anything, it’s weakening. Apparel this month was -0.45% m/m, and only 1.1% y/y. Apparel is almost entirely imported, and at some point a steady-to-lower dollar will mean that core goods heads back to flattish. (Also, keep in mind that both Presidential candidates have expressed pro-tariff positions, but that’s a 2025 story at the earliest).
Within Core Goods, we also saw Used Cars decline yet again. This month it was -2.3%. CPI had diverged a bit from the private surveys, but with this month has basically converged back to the number implied by Black Book. That doesn’t mean Used Car prices won’t decline further, but there’s no longer a reason to expect “bonus depreciation” going forward.
Now, in the first chart above note that Core Services dipped to 4.9%, the lowest it has been in a while also. Within core services, we saw Airfares decline again (-1.6% m/m after -5% last month), but the interesting thing is Hospital Services. The other parts of Medical Care, that is Physicians’ Services and Medicinal Drugs, were both in line with recent trends and on top of last month’s figures. Hospital Services plunged -1.1% m/m. The y/y is still pretty high at 6.1%, but if this number is prologue (I sort of doubt it) then this upward pressure will abate.
The fact that services dropped so hard helped to bring “SuperCore” down a little bit. It is still elevated, and frankly the trend doesn’t look wonderful. You want 50bps in September? You need more than this, pal.
Do you know what I haven’t mentioned yet? Shelter. Shelter is the biggest and stickiest piece, and the foreordained deceleration of shelter is part of the religion of everyone who thinks we will decline to 2% core inflation and remain there (which is basically where breakevens are these days). Bad news – this month, Primary Rents rose 0.49% m/m and OER rose 0.36%, compared to 0.26% and 0.28% last month. This is where it’s useful though to look at the y/y numbers. That big surprise in Primary Rents produced an unchanged y/y number and OER still decelerated to 5.30% from 5.45%. The wonder of base effects!
So let’s harken back to the beginning of this piece. In ‘A Potential Pony Situation,’ the Median CPI warned us to not get too worried about the surge in core because Median was pretty well-behaved. In the current circumstance, Median tells us to not get too excited by all of those people who will be talking about how low the 3-month average is (I guarantee that old chestnut will make a reappearance this month), because Median will be something like 0.268% (my early estimate). This will be the highest since April, if I am right.
The bottom line remains the same, and that is that inflation continues to decelerate but median is going to end up in the “high 3s, low 4s.” I keep thinking that we will dip below that for a little while when the base effects of shelter pass through, before reaccelerating to what I think is the new ‘normal’ level, but shelter is being persnickety and resistant to that deceleration. Either way, there is nothing here that would encourage the Fed to aggressively ease 50bps. Or, for that matter, to ease at all. If the Fed eases in September (which I expect, even though if I were a member of the Board I wouldn’t vote for one), it will be because its members fear recession and not because there is evidence that inflation is licked. That evidence is still elusive.
Inflation Guy’s CPI Summary (June 2024)
Let’s set the stage. Last month (May’s data), core CPI printed at +0.16% and +0.25% on Median. But a lot of that, most of it, was core goods and the question was whether that month was a one-off due to be reversed at some point, or if shelter and other slower-moving things would come along. Coming into this month, the economists’ consensus was for +0.21% on core; the inflation swap market trades headline inflation but actually implied something a tiny bit softer than the economists were expecting. We knew Used Cars was going to be weak again, but it seemed like people were all-in on the idea that the worm has turned and now inflation is going to head sharply lower.
Whether this turns out to be true or not, it’s important to realize that the reason economists think that is because unemployment is rising, indicating that we are either in or very near a recession, and economists think (against logic and data) that wages lead prices so this should herald a disinflationary pulse. Now, I also think inflation is headed lower, but it’s because shelter is coming off the boil and not because the Fed successfully cracked the backs of labor.
So what happened this month?
We saw a very weak headline number of -0.06%, which was mainly the fault of a very weak core inflation number of +0.06%. That’s the second quite weak core figure in a row, and when median CPI comes out later today it should be even weaker than last month, at +0.195% or so. If we could repeat that median every month, it would be tantamount to inflation being at the Fed’s target because median normally tracks a little higher than core except when we are in an inflationary upswing.
But whereas last month’s inflation figure was all about core goods, this month we finally saw a bit of a deceleration in shelter. Okay, yes – core goods slipped further into deflation, because that category exists mainly to make me look stupid by going lower and lower when I keep thinking the disinflation must be nearly wrung out. Core Services dropped to 5.1% y/y from 5.3% y/y.
We had known Used Cars would be weak, and it was at -1.5% m/m. New cars also dragged. But I will say it again because I want to have the chance to appear stupid again next month: goods deflation is running its course. Global shipping costs are rising again, the dollar will be vulnerable if the Fed begins to ease, and while used cars should continue to show large y/y declines for the next few months that’s mostly base effects. On an index level, the used cars price index is almost all the way back to the overall price level. Since COVID, the general price level – what has happened to the average price of goods and services – is up 22.3%. Used Car prices are now only up 27.7%. Not all goods and services will move up exactly 22.3%; the point is that the dislocation in used cars is pretty much over and therefore we should expect at some point that used car inflation will start to look more like overall inflation.
But again, goods aren’t the story we really care about. The question is, what about services? The news here is all non-bad. (Some of it is good, some is just not bad.) This month, the story is that rents abruptly weakened on a m/m basis. Primary Rents were +0.26% m/m (was +0.39% last month), and Owners’ Equivalent Rent was +0.28% (was +0.43% last month). This dropped the y/y rates to 5.07% and 5.45%, respectively.
That’s good news, but it is not unexpected news. The conundrum over the last 3-6 months has been why this wasn’t already happening. On a m/m basis, the rent numbers probably won’t get a lot better, but if they print around this level consistently then the y/y rent numbers will decelerate gradually. Unfortunately, there is no sign of deflation in rents and they are likely to begin to reaccelerate later this year, or early next year. That is an out-of-consensus view, though, and you should keep in mind that the Fed believes we have imminent deflation in rents.
In addition to the softer rents numbers, Lodging Away from Home showed -2% m/m. However, like airfares (-5% m/m), LAFH is not something that is going to be a persistent large drag. It’s volatile. On airfares, this decline in prices matches nicely with the energy figures we saw yesterday that showed a surprising fall in jet fuel inventories. Prices dropped and people flew!
Moving on to “Supercore.” People made a lot last month of the m/m decline in core services ex-shelter, and they’ll make a lot of the fact that it declined m/m again this month. But that looks like a seasonal issue: last year the two softest months were also May and June. On a y/y basis, supercore showed another slight decline. Medical Care Services is 3.3% y/y, with Physicians’ and Hospital Services both holding pretty steady at a high level. I don’t see any major improvement in supercore yet.
Overall, there’s no doubting that this number is soothing for the Fed. It’s soothing for me too. Inflation is decelerating, and as I said last month I think the Fed will almost certainly deliver a token ease in the next couple of months.
The potential issue is that inflation isn’t slowing for the reason the Fed thinks it is. The economy is slowing, and unemployment is rising. I don’t know when Sahm first said it, but for decades I’ve been noting that when the Unemployment Rate rises at least 0.5% from its low, it always rises at least 1% more (here’s a time when I said it in 2011: https://inflationguy.blog/2011/07/10/no-mister-bond-i-expect-you-to-die/ ). Not that I’m bitter that it’s called the “Sahm Rule” now.
So yes, the economy is weakening and the labor market is softening. And that presages a deceleration in wage growth – or, really, a continuation in that deceleration. But the connection between wages and prices is loose at best, and that’s not why inflation will stay low, if it does. In fact, I continue to believe that median inflation will end up settling in the high 3s, low 4s. There has always been an ‘unless’ clause to that belief, but it isn’t ‘unless we enter recession.’ We will enter into one, and probably already are, but recessions and decelerations in core inflation are also only a loose relationship at best. It isn’t the recession which is causing disinflation (after all, the disinflation started long before now). What may is the slow growth in the money supply, combined with the rebound in velocity eventually running its course. We are closer to the end of the velocity rebound than to the beginning, and while M2 is accelerating it isn’t problematic yet. Those are the nascent trends to watch closely.
In the meantime – the Fed has what it wants for now. Soft employment and softening inflation. An ease will follow shortly. Whether that is followed by further eases remains to be seen, but…for now…the trends are favorable for the central bank.
Inflation Deceleration Continues – But Not Enough
[A version of this article first appeared in last month’s Quarterly Inflation Outlook, available at https://inflationguy.blog/shop/]
Core and Median inflation continue to decline. This is not really a surprise; since early 2023 the clear direction has been to lower inflation. The debate has not been about whether inflation was heading higher or lower. The debate has been about whether the downtrend was going to converge on 2% as the Fed’s target, or fall short of that level. For at least that long, my position has been that median inflation would settle in the “high 3s/low 4s.” To date, nothing has happened to change that view.
In fact, it cannot escape notice that inflation has been coming down a lot more slowly than it went up. When the initial spike happened, certainly the ‘transitory’ crowd expected inflation would fall at least as rapidly as it went up, and even many of those who correctly understood that the underlying dynamics were not accidents of fate but the results of terrible policy thought that the return round-trip would take roughly the same amount of time as the outbound leg. But that hasn’t happened. The softening of inflation has been more reluctant than was the upward thrust. This is partly because, since the initial move in prices was not transitory, it kicked off a feedback loop: so wages went up to reflect the pressures that workers were feeling, and that fed back into inflation.
For Median CPI, the sharp acceleration took off from August 2021 at 2.4% and extended 18 months until it reached 7.1% in February 2023. In the 15 months since then, median has declined only to 4.3%, and this rate of improvement appears to be flattening out rather than accelerating.
On Core CPI, the difference has been more striking. The jump from 1.6% y/y to 6.5% y/y took 12 months, from March 2021 to March 2022. Since the actual 6.6% high in September 2022, we have had 20 months of declining inflation and core is only back to 3.4%.
The optimistic view is that we have had more months of decelerating inflation than we had of accelerating inflation. The more realistic view, especially considering that Median CPI hadn’t been above 3.33% for 28 years prior to COVID (and Core, not above 3.1%) is that inflation is converging to the mean…but to a different mean. This is what I have argued (for a long time) was happening: the perturbation to the former equilibrium displaced the whole distribution to a new equilibrium (“high 3s, low 4s”). We are now getting data that seems to support this notion.
One important characteristic of mean-reverting series is that the amount of mean-reversion “pressure” is related to the distance of the current point from the mean. That is, when inflation is far away from the mean, it tends to revert more quickly and when it is closer to the mean the pressure to converge is less. The general form of a mean-reverting series1 is:
In this equation, the economic variable is represented by the time series S, the long-term mean is μ, and the mean reversion rate is k.2 Because there is also random noise, and because many economic series don’t tend to see large perturbations on a regular basis, it is not a trivial thing to pick out the long-term mean and the reversion coefficient from the noise. But the point is that such series, when they are strongly perturbed, initially spring back rapidly but then gradually slow how much they are rebounding, until they approach the mean. That certainly looks like what we have here. The chart below shows core and median CPI, but from the point of the shock to new highs I have added ‘mean reversion lines’ where the long-term mean is taken to be 4% for Median CPI and 3.5% for Core CPI, and the mean reversion coefficient is taken to be 0.12 in each case.3
There are lots of different combinations that can produce plausible dynamics, and my point isn’t to claim that these are the right parameters. I am merely trying to illustrate that the recent behavior looks like a series that is mean reverting to new, higher means.
(For what it’s worth, if you want to see why most economists last year thought that we would be back at target inflation in late 2023/early 2024, use 2% for μ. In that case, inflation starts down much more steeply than we actually saw, and doesn’t flatten out until lower levels of inflation.)
Why is the rate of improvement slowing? It is slowing because the easiest improvements have already happened. For example, core goods inflation has declined from over 12% to -1.7% y/y. That’s great news – but the first 14% of disinflation is surely the easiest! Other, stickier parts of the CPI, such as shelter and ‘supercore’, are coming down more slowly (shelter) or not at all (supercore, which is at the same level it first reached in March 2022). In the conventional view, this is “improvement that is waiting to happen.” But if overall core/median inflation is converging to a higher mean, then these improvements will be mostly offset by an increase in core goods inflation from -1.7% to, say, 0%.
The road gets harder from here, and that’s what the decelerating deceleration is telling us!
- I’ve excised the complicated-looking, but irrelevant for this discussion, symbology for the noise term so as not to perturb readers too far from their means. ↩︎
- Worth pointing out, since I have used the ‘spring’ analogy to explain the behavior of money velocity, is that the ‘pressure’ part of this equation is identical to the physics of a spring, where F=-kx and x is displacement. ↩︎
- Actually, I’ve also removed the recursion – that is, the dotted line isn’t based on the most-recent S, but on the starting S and then thereafter on the calculated S. It would be what your mean-reversion-inspired forecast would look like, from the initial point. ↩︎
