WASHINGTON — Prices at the wholesale level rose at the fastest pace in nearly 3 years in May, pushed higher by a sharp jump in the cost of gasoline and a record increase in the price eggs related to an outbreak of avian influenza. But outside of increases in volatile food and energy costs, core inflation remained moderate.
The producer price index, which measures inflation pressures before they reach consumers, spiked 0.5 percent in May, the Labor Department reported Friday. It was the biggest one-month increase since September 2012. The increase followed a 0.4 percent drop in wholesale prices in April. The May increase reflected a 17 percent rise in gasoline prices, the biggest hike since August 2009, and a record 56.4 percent surge in egg prices.
Core prices, which exclude energy and food, rose just 0.1 percent in May.
Over the past 12 months, wholesale prices are down 1.1 percent, reflecting big declines in energy prices over the past year. Core inflation is up a modest 0.6 percent over the same 12-month period.
Joshua Shapiro, chief U.S. economist at MFR Inc., said that inflation pressures should remain modest in coming months, given weakness in the global economy and a stronger dollar, which lowers the price of imports for Americans.