The decline in the natural rate of interest, or r-star, over the past decade raises three important questions. First, is this low level for the real short-term interest rate unique to the U.S. economy? Second, is the natural rate likely to remain low in the future? And third, is this low level confined to “safe” assets? In answer to these questions, evidence suggests that low r-star is a global phenomenon, is likely to be very persistent, and is not confined only to safe assets.
View past FRBSF Economic Letters