U.S. Inflation Accelerates to 3.7%, Deepening Fed’s Rate Dilemma

A gas station in California, the United States. As inflationary pressures in the United States intensify again, the Federal Reserve’s (Fed) monetary policy outlook has become increasingly complicated. With surging energy prices and tariff costs spreading across the broader economy, markets are divided over the timing and magnitude of any further rate hikes this year. The Consumer Price Index (CPI) for September, released by the U.S. Department of Labor on Oct. 14 (local time), rose 3.7% year over year, exceeding economists’ expectations of 3.6%. Month over month, prices climbed 0.6%, up from August’s 0.4% increase. Gasoline prices surged 9.1% in a single month, accounting for more than half of the overall increase in consumer prices. Core CPI, which excludes highly volatile items, also rose 2.6% year over year, fueling concerns that inflation may be easing more slowly than expected. The Fed’s Beige Book, its report on economic conditions released the same day, suggested that inflationary pressures are spreading throughout the supply chain. According to the report, prices rose in 11 of the 12 Federal Reserve districts, while fuel surcharges driven by a sharp increase in diesel prices added to transportation costs. Businesses are facing a triple squeeze from rising raw material costs, tariffs and insurance premiums. However, concerns about weakening consumer demand are preventing them from fully passing those costs on to customers, putting pressure on profitability. Monetary policy experts increasingly expect the Fed to hold rates steady this month before pursuing more aggressive tightening in December. Jason Schenker, president of Prestige Economics, predicted that the Fed would pause in October to assess the effects of its September rate hike. He noted, however, that if inflation has not come under meaningful control by December, the Fed could deliver a “big-step” rate hike, raising its benchmark rate by 0.5 percentage points in a single move. Schenker said the Fed did not yet have enough data to confidently decide on further action. He noted that the employment reports and CPI data due between the October and December meetings would provide policymakers with more information, and said the Fed could opt for a 0.5-percentage-point hike instead of 0.25 percentage points if the September rate increase had failed to bring inflation under control. A larger increase in December could allow the Fed to pause further hikes early next year, while a smaller increase could mean that monetary tightening continues into the first quarter. Views among Fed officials remain sharply divided. Susan Collins, president of the Federal Reserve Bank of Boston, took a hawkish stance, saying further rate hikes by year-end would be appropriate to achieve the Fed’s 2% inflation target. By contrast, Michelle Bowman, the Fed’s vice chair for supervision, said she felt no urgency to take further action and stressed the need for more time to assess conditions. Policymakers are also weighing the risk that raising rates too quickly could weaken the labor market. Market indicators reacted immediately. The probability of an October rate hike, which stood at 22% before the CPI release, jumped to 52% immediately afterward before retreating to the 30% range, reflecting sharp swings in market expectations. In the housing market, the average rate on a 30-year fixed-rate mortgage rose to 7.5%, its highest level in three years, adding to the financial burden on households. New developments have also emerged in the labor market. The Beige Book reported that businesses continued to hold back on both hiring and layoffs, a pattern described as “low hiring, low firing.” It also identified cases in five districts in which companies reduced headcounts or delayed hiring, citing productivity gains from investment in artificial intelligence (AI). With inflation rising while employment remains stagnant, the Fed is set to make its next policy decision at the Federal Open Market Committee (FOMC) meeting scheduled for Oct. 27–28.