In our business, one must be very careful of confirmation bias of course (as well as all of the other assorted biases that can adversely affect one's decision-making processes). And so I want to be very careful about reading too much into yesterday's CPI report. That being said, there were some hints and glimmers that the main components of inflation are starting to look more perky.
Headline ("all items") inflation rose in June to 1.75% y/y, with core inflation 1.64%. About 20% of the weights in the major groups accelerated on a year-on-year basis; about 20% declined, and 60% were roughly flat. However, two thirds of the "unchanged" weight was in Housing, which moved from 2.219% to 2.249% y/y…but the devil is in the details. Owner's Equivalent Rent, which is fully 24% of the overall CPI and about one-third of core CPI, rose from 2.13% to 2.21%, reaching its highest rate of change since November 2008. Primary Rents (that is, if you are a renter rather than a homeowner) rose from 2.83% to 2.89%, which is also a post-crisis high. Since much of my near-term expectations for an acceleration in inflation in the 2nd half of the year relies on the pass-through of home price dynamics into rentals, this is something I am paying attention to.
This is what I expected. But can I reject a null hypothesis that core inflation is, in fact, in an extended downtrend – that perhaps housing prices are artificially inflated by investor demand and will not pass through to rents, and the deflation in core goods (led by Medicare-induced declines in Medical Care) will continue? I cannot reject that null hypothesis, despite the fact that the NAHB index surprised with a leap to 57, its highest since 2006 (see chart, source Bloomberg, below). It may be, although I don't think it is, that the demand is for houses, rather than housing and thus the price spike might not pass into rents. So, while my thesis remains consistent with the data, the real test will be over the next several months. The disinflationists fear a further deceleration in year-on-year inflation, while I maintain that it will begin to rise from here. I still think core inflation will be 2.5%-2.8% by year-end 2013.
In fact, I think there is roughly an even chance that core inflation will round to 1.8% next month (versus 1.6% this month), although the 0.2% jump will be more dramatic than the underlying unrounded figures. The following month, it will hit 1.9%. That is still not the "danger zone" for the Fed, but it will quiet the doves somewhat.
Meanwhile, the Cleveland Fed's Median CPI remained at 2.1%, the lowest level since 2011. The Median CPI continues to raise its hand and say "Hello? Don't forget about me!" If anyone is terribly concerned about imminent deflation, they should reflect on the fact that the Median CPI is telling us the low core readings are happening because a few categories have been very weak, but that there is no general weakness in prices.
Although I maintain that the process of inflation will not be particularly impacted by what the Fed does from here – and, if what they do causes interest rates to rise, then they could unintentionally accelerate the process – the direction of the markets will be. And not, I think, in a good way. Yesterday we saw what happens when an inflation number came in fairly close to expectations: stocks down, bonds flat, inflation-linked bonds up, and commodities up. Now, imagine that CPI surprises on the high side next month?
Speaking of the fact that commodities have had (so far at least) their best month in a while, there was a very interesting blog entry posted today at the "macroblog" of the Atlanta Fed. The authors of the post examined whether commodity price increases and decreases affect core inflation in a meaningful way. Of course, the simple answer is that it's not supposed to, because after all, that's what the BLS is trying to do by extracting food and energy (and doing that across all categories where explicit or implicit food and energy costs are found, such as in things like primary rents). But, of course, it's not that simple, and what these authors found is that when commodity prices are increasing, then businesses tend to try and pass on these cost increases – and they respond positively to a survey question asking them about that – and it tends to show up in core inflation. But, if commodity prices are decreasing, then businesses tend to try and hold the line on prices, and take bigger profit margins. And that, also, shows up in the data.
To the extent this is true, it means that commodity volatility itself has inflationary implications even if there is no net movement in commodity prices over some period. That is because it acts like a ratchet: when commodity prices go up, core inflation tends to edge up, but when commodity prices go down, core inflation tends not to edge down. Higher volatility, by itself, implies higher inflation (as well, as I have pointed out, as increasing the perception of higher volatility: see my article in Business Economics here and my quick explanation of the main points here). It's a very interesting observation these authors make, and one I have not heard before.