Historic evidence since 1960 suggests that headline inflation responds to monetary policy differently from core inflation, which excludes food and energy prices. After a surprise hike in the federal funds rate, headline personal consumption expenditure (PCE) inflation declines within a year (green line), largely reflecting declines in energy and food price inflation. In contrast, core PCE inflation (blue line) takes two years to decline. The current inflation cycle follows this pattern: over the last year, core PCE inflation declined only slightly, but headline PCE inflation declined from 7.0 to 4.4 percent.
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