Consumer Inflation Rebounds to 3.1% in August

In August, U.S. consumer inflation surged to 3.1%, returning to the 3% range after dipping to 2.8% the previous month. This rebound was driven by a surge in mobile phone charges, which rose 26.7% from the previous year, marking the largest annual increase since 2021. The mobile fee hike accounted for approximately 0.58 percentage points of the overall inflation rate, excluding it would have reduced inflation to around 2.5%.

Petroleum prices climbed 14.2% year-over-year, though the rate of increase slowed from 15.5% in July. Diesel and gasoline prices rose 19.6% and 11.5%, respectively, though the government-imposed price cap limited the escalation. Consumer prices for public services surged 6.5%, their largest increase in over two and a half decades, largely due to the mobile phone charge surge.

Agricultural, livestock, and fishery prices fell 2.6% year-over-year, aided by increased exports and government discounts, reducing the overall inflation rate by 0.21 percentage points. The fresh food index decreased 6.7%, its most significant decline in four years, easing pressure on household food costs. Vegetable prices, however, jumped 12.4% from the prior month, despite falling 9.7% year-over-year, due to hot summer weather and heightened demand during the vacation season.

Main items like napa cabbage and spinach saw price jumps of 37.0% and 68.2%, respectively, over the month. Processed food prices rose 1.5%, reflecting higher factory prices for staples like bread and noodles. Core inflation, excluding food and energy, surged to 3.4%, its highest level in three years, largely due to the amplifying base effect from the mobile fee hike.

In anticipation of the upcoming Chuseok holiday, the government plans to implement measures to stabilize consumer prices, including discounts on agricultural and fishery products, as well as increased supplies of key holiday items.