But how much significance should be attached to these developments? One interpretation is that consumers’ inflation expectations play an important role in shaping actual inflation. If households and firms expect rising prices, these expectations may be incorporated into wage demands and pricing decisions. From this perspective, the rise in expectations is concerning, as it implies a risk of near-term inflationary pressure that would gradually fade over time.
An alternative view is that the public overreacted to the tariff announcements and that these expectations play a limited role in wage-setting and inflation dynamics. If so, the rise in expected inflation may have little bearing on actual outcomes, and the risk of a sharp rise in inflation is correspondingly low.
To assess the predictive value of inflation expectations, monthly data from 1981 onward is used to examine how well they have historically forecast actual consumer price index inflation over the following one and five years. The first scatter plot below compares one-year-ahead expected inflation (horizontal axis) with realized inflation over the same period (vertical axis). If expectations were perfectly accurate, the observations would lie on a 45-degree line through the origin—implying a one-for-one relationship between expected and actual inflation. In such a case, expected inflation would explain 100% of the variation in subsequent inflation.
In practice, while the scatter plot shows a positive relationship, the data are widely dispersed. On average, a 1 percentage point increase in expected inflation is associated with a 0.93 percentage point increase in actual inflation—somewhat less than expected. The proportion of variation in actual inflation explained by expectations, as measured by the R-squared value, is modest at 34%.