U.S. consumer inflation excluding energy and food accelerated to a new four-decade high in September as prices continued to surge, a sign that persistent cost increases are becoming entrenched in the economy.
The Labor Department on Thursday said that the so-called core measure of the consumer price index—which excludes volatile energy and food prices—gained 6.6% in September from a year earlier, up from 6.3% in August. That marked the biggest increase since August 1982.
