By Paul Gomme and Peter Rupert
The March CPI (Consumer Price Index) brought decidedly mixed news. Year-over-year, CPI inflation fell from 6% in February to 5% in March. Indeed, the year-over-year inflation rate has trended down since mid-2022. However, as we have pointed out in earlier posts, year-over-year measures of inflation are slow to reflect recent changes in trend since they are 12 month averages of past monthly inflation rates. The good news is that monthly (annualized) inflation is down from 4.5% (February) to 0.6% (March), well below the Fed’s 2% inflation target. A glance at the chart below will remind regular readers that monthly inflation rates exhibit considerable variability. Our preferred measure is the 3-month average of monthly inflation rates. This measure declined more modestly, from 4.1% to 3.8%. More importantly, the 3-month average inflation rate is still well above the Fed’s 2% target.
The news is decidedly worse when looking at core CPI inflation (that is, excluding the volatile food and energy components). On a year-over-year basis, core CPI inflation rose from 5.5% in February to 5.6% in March. On the other hand, the monthly core CPI inflation rate fell from 5.6% to 4.7%. Again, we prefer to look at the 3 month average to gauge the direction of trend inflation. The 3 month average of core CPI inflation fell slightly, from 5.2% to 5.1%. More troubling is that these measures are all well above the Fed’s 2% inflation target.
The producer price index (PPI) was released today that offered up a little more good news. The PPI fell 0.5% in March. Moreover, as noted by the BLS, “two-thirds of the decline in the index for final demand can be attributed to a 1.0-percent decrease in prices for final demand goods. The index for final demand services moved down 0.3 percent.”
Finally, short term inflation expectations have risen: For the one year horizon, from 2.1% in March to 2.6% in April; at the two year horizon, from 2.2% to 2.4%. These developments are, presumably, unwelcome by policymakers who are worried about higher inflation expectations becoming entrenched. Fortunately, the five year expected inflation rate fell from 2.2% to 2.1% while 10 year expectations dropped from 2.3% to 2.1%.
Overall, as mentioned at the outset, the news is mixed. Yes, the CPI is down. But, the year over year core CPI is up. The main reason for the difference between the CPI and CORE CPI is that energy prices fell: gasoline, down 17.4%, and fuel oil, down 14.2%. Given the highly volatile nature of food and energy it is useful to pay attention to the core measure.
