Market Extra: Don’t be fooled by a drop in U.S. headline inflation. Markets will be attuned to anoth

Joe Raedle/Getty ImagesTraders, investors and economists are all counting on Wednesday’s consumer-price index report to show a decline in the annual headline U.S. inflation rate for July. But there’s another figure buried in the consumer-price index data that has the propensity to jolt markets.It’s called the core year-over-year CPI reading, a measure which strips out volatile food and energy costs. It came in at 5.9% for the 12 months that ended in June, and the consensus view is that it...