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Today (May 12), the Bureau of Labor Statistics (BLS) released its report on the consumer price index (CPI) for April. As expected, higher energy prices resulting from the conflict in Iran led to a jump in inflation. The following figure compares headline CPI inflation (the blue line) and core CPI inflation (the red line).
- The headline inflation rate, which is measured by the percentage change in the CPI from the same month in the previous year, was 3.8 percent in April, up from 3.3 in March. This was the highest inflation rate since May 2023.
- The core inflation rate, which excludes the prices of food and energy, was 2.7 percent in April, up slightly from 2.6 percent in March.
Headline inflation and core inflation were both slightly higher than economists surveyed by the Wall Street Journal had expected.

In the following figure, we look at the 1-month inflation rate for headline and core inflation—that is the annual inflation rate calculated by compounding the current month’s rate over an entire year. Calculated as the 1-month inflation rate, headline inflation (the blue line) was a very high 8.0 percent in April, which was actually down from 10.9 percent in March. Core inflation (the red line) was 4.6 percent in April, up from 2.4 percent in March.

The following figure emphasizes the role played by energy prices in causing the jump in inflation. The blue line shows the 1-month inflation rate in all energy prices included in the CPI. Inflation in energy prices declined from a very high 245.1 percent in March to a still high 56.6 percent in April. The red line shows the 1-month inflation rate in gasoline prices, which declined from an astounding 907.4 percent in March to a still very painful 88.8 percent in April.

Did the jump in energy prices pass through to increases in food prices, which are a key concern for many consumers? The following figure shows 1-month inflation in the CPI category “food at home” (the blue bar)—primarily food purchased at grocery stores—and the category “food away from home” (the red bar)—primarily food purchased at restaurants. Inflation in grocery prices rose 8.5 percent in April after declining in March. Inflation in food prices away from home was 2.8 percent in April, down from 2.9 percent in March. The high rate of increase in grocery prices was due to rising energy prices, as well as to sharp increases in beef and fruit and vegetable prices, which rose for reasons largely unrelated to higher energy costs.

What effect is this inflation report likely to have on the Fed’s policymaking Federal Open Market Committee (FOMC) at its next meeting on June 16–17—Kevin Warsh’s first meeting as Fed chair? Earlier this year, some market analysts believed that replacing Jerome Powell as chair with Warsh would increase the probability of the FOMC cutting its target for the federal funds rate this year. But the acceleration in inflation during the past two months, even if it proves to be temporary, and relatively strong data on economic growth and employment make it unlikely that Warsh will push for a rate cut any time soon. At this point, trading by investors in the federal funds futures market favors the FOMC neither raising nor lowering its federal funds rate target during the remainder of this year.
