The yield curve on Treasury bonds inverted during overnight trading, the first time this has occurred since 2007. The spread between three-year and five-year bonds dipped to negative 1.4 basis points, and that between two-year and five-year bonds followed. Each of the last seven recessions was predated by inverted yield curves. However, it is typically the spread between the two-year and 10-year Treasury notes that is generally considered the benchmark yield curve for bonds, which is currently 15 basis points after flattening throughout the year from a peak of 80 basis points. Although it couldn’t be gleaned from this morning’s press stories, an inverted yield curve is not the cause of recessions; it is sometimes a warning sign...