January 15, 2025

The CPI rose 0.4% in December after climbing 0.3% in November and 0.2% in October. The year-over-year increase (for 2024) is 2.9%.  We now expect the overall CPI to increase 2.9% in 2025.

Food prices rose 0.3% in December after gaining 0.4% in November and 0.2% in October.  In the past year food prices have risen 2.4%.  Economists typically subtract food and energy prices from the CPI and focus on the so-called “core” rate of inflation.  That is because these two categories are extremely volatile.  They might go up for a few months but then reverse direction and decline almost as quickly as they rose.

Energy prices jumped 2.6% in December after increasing 0.2% in November and being unchanged in October.   In the past year they have declined 0.4%.

The core CPI rose 0.2% in December after gaining 0.3% in each of the previous four months.    The  year-over-year increase (for 2024) stands at 3.2%.  The core CPI is decelerating slowly but steadily.  We expect the core CPI to increase 2.9% in 2025.

At the moment, goods sector inflation is declining slowly as consumers have been spending less money on goods but more on services. Core goods sector inflation has declined 0.5% in the past year.  However, inflation in the core service sector (which is twice the size of the goods sector) has been steadily rising and has climbed 4.5% in the past year.  This is important because services make up two-thirds of the entire CPI.

Prices in the service sector are to a large extent being driven by housing.  Home prices continue to climb but the rate of increase seems to be slowing.

The shelter component of the CPI rose 0.3% in both November and December after gaining 0.4% in October.  The year-over-year increase now stands at 4.6%. This is a big deal because rents represent one-third of the entire CPI index.  A 4.6% increase in one-third of the entire CPI index is not at all consistent with an overall inflation rate of 2.0%.  .However, we expect the shelter component to continue to slow gradually throughout 2025,

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This is because there is a good correlation between the shelter component of the CPI and what happened to the Case Shiller index of home prices with a lag of about 15 months. This means that the shelter component should slow as the year progresses to 3.6% in 2025  which is one reason that the core inflation rate should continue to shrink in the months ahead.

The two of the worst performing service sector components in recent months have been automobile insurance and auto repairs which in the past year have risen 11.3% and 7.2%, respectively.  With respect to the automobile insurance category, higher car prices, rising car repair costs (largely labor), an increase in disaster-related claims, and theft and vandalism in high crime areas of big cities are the primary factors behind the gain.  While both categories have been rising very rapidly, they have both slowed down in the past three months which is another reason why the inflation rate should slow in the months ahead.

Typically, M-2 rises at about a 6.0% pace.  But when the Fed purchased $4.0 trillion of government securities back in the spring of 2020, money growth soared.  It continued to grow rapidly right up through March of 2022.  Since then the Fed has been shrinking its portfolio and that has caused the money supply to decline.  Currently, the level of M-2 stands $0.4 trillion higher than its desired 6.0% growth path.  That means that the economy currently has $0.4 trillion more liquidity than it needs.  If the Fed continues to shrink its portfolio the excess liquidity should be nearly eliminated  in the months ahead which should allow the inflation rate to continue to shrink.

After increasing increase 3.2% in 2024 we expect the core CPI to increase 2.9% in 2025.  Keep in mind that the core CPI runs about 0.5% higher than the Fed’s target core personal consumption expenditures index.  Thus, a core CPI of 2.9% at the end of 2025 is equivalent to 2.4% or so for the Fed’s core PCE index which it targets at 2.0%.

Stephen Slifer

NumberNomics

Charleston, SC