U.S. consumer prices post largest gain since 2009 as inflation ramps up

By Lucia Mutikani

WASHINGTON (Reuters) - U.S. consumer prices increased by the most in nearly 12 years in April as booming demand amid a reopening economy pushed against supply constraints, which could add fuel to financial market fears of a lengthy period of higher inflation.

The report from the Labor Department on Wednesday also showed a strong buildup of underlying price pressures, extending a stocks selloff on Wall Street. Most economists were, however, unwavering in their belief that the surge in prices would be temporary, noting that the main drivers of the bigger-than-expected inflation increase were hotels and airlines, industries that were hardest hit by the coronavirus pandemic.

Bottlenecks in the supply chain, which led to a record jump in prices of used cars and trucks last month, were expected to ease. Federal Reserve Chair Jerome Powell has similar views.

"This is not a sign of an inflation problem," said Robert Barbera, director of Johns Hopkins University's Center for Financial Economics. "We have the capacity to produce this stuff, we simply need time to get things back on line."

The consumer price index jumped 0.8% last month, the largest gain since June 2009. The CPI rose 0.6% in March. A 10.0% surge in prices of used cars and trucks, the most since the series started in 1953, accounted for over a third of the increase in the CPI last month. That followed a 0.5% rise in March. Motor vehicle production has been hampered by a global semiconductor chip shortage, boosting demand for used automobiles.

Food prices increased 0.4%, lifted by rises in the cost of fruits and vegetables, dairy products, meats, fish and eggs. Households also paid more to dine out. But gasoline prices fell 1.4% after accelerating 9.1% in March.

A sharp rebound is likely after hackers shut down the Colonial Pipeline on Friday, leaving gas stations from Florida to Virginia running dry and prices at the pump surging this week.

Economists polled by Reuters had forecast the CPI would climb 0.2%. In the 12 months through April, the CPI shot up 4.2%. That was the largest gain since September 2008 and followed a 2.6% increase in March. The jump mostly reflected the dropping of last spring's weak readings from the calculation.

Those so-called base effects are expected to push annual inflation even higher in the months ahead.

Stocks on Wall Street fell, building on the previous session's losses, as investors worried that surging inflation could force the Fed to raise interest rates sooner than expected. The dollar strengthened against a basket of currencies. U.S. Treasury prices were lower.