Recently, there has been renewed attention on the natural rate of interest—often referred to as “r-star”—and whether it has risen from the historically low levels that prevailed before the COVID-19 pandemic. The natural interest rate is the real (inflation-adjusted) interest rate expected to prevail when supply and demand in the economy are in balance and inflation is stable. Some commentators claim that the prior decline in r‑star has reversed, pointing to the recent rise in future...