> Anecdotal evidence and occasional surveys have indicated that the general public believes inflation is running well above official reporting, and that public perceptions tend to mirror the inflation experience that once was reflected in the government’s formal CPI reporting.

... but one might reasonably suppose that part of the public's supposed perception of inflation influenced not just by actual prices but by the way we talk about prices and inflation? I.e. some people that keep talking about inflation being "actually" higher than measured contribute to people believing that inflation is higher.