Gasoline drives inflation spike

U.S. inflation jumped hard in March, and one number did most of the damage: gasoline prices rose 21.2% in a single month, the biggest increase in that index since 1967. The overall Consumer Price Index rose 0.9% from February and 3.3% from a year earlier, the fastest monthly increase since June 2022. (bls.gov) That gas spike was not a side note. The Bureau of Labor Statistics said gasoline alone accounted for nearly three quarters of the entire monthly increase in consumer prices. (bls.gov) The chain is simple: the war with Iran pushed up global oil prices, refiners and fuel distributors paid more, and drivers saw it almost immediately on station signs. Reuters reported that diesel prices also surged, adding pressure well beyond passenger cars. (reuters.com) Energy moves faster than most prices in the economy. A haircut or a rent lease changes slowly, but a gallon of regular can jump in days, which is why a shock in the Middle East can show up in a U.S. inflation report within weeks. (nytimes.com) March’s broader energy index rose 10.9% in one month, and energy commodities excluding services such as electricity rose 21.3%, which Bloomberg described as a record increase. That is the kind of move that can overwhelm calmer categories elsewhere in the basket. (bls.gov) (bloomberg.com) Underneath the headline, inflation was much cooler. Core Consumer Price Index, which strips out food and energy, rose 0.2% in March and 2.8% over 12 months, suggesting the biggest shock came from fuel rather than a broad new wave of price increases across the economy. (bls.gov) (cnbc.com) Households feel that kind of inflation twice. First at the pump, where commuting gets more expensive, and then in delivered goods, because diesel is the fuel that moves groceries, packages, and building materials across the country. (reuters.com) (aol.com) Shelter did not disappear in March either. The shelter index still rose 0.3%, which meant fuel prices landed on top of an already expensive base for rent and housing-related costs. (bls.gov) For the Federal Reserve, this is the awkward version of inflation. Job growth rebounded in March, according to Reuters, but a 3.3% annual inflation rate and a fuel-driven monthly spike make it harder to justify cutting interest rates quickly. (reuters.com) (cnbc.com) The next question is whether March was a one-month oil shock or the start of a longer run. If crude prices stabilize, this kind of inflation can cool fast; if the Iran conflict keeps energy markets tight, April and May can keep feeding the same pump-to-paycheck squeeze. (nytimes.com) (reuters.com)