The 10 year minus 2 year Treasury spread
Two curves are replaced by one derived series, so the chart asks a single question: is it below zero. Deriving the comparison beats drawing both lines and leaving the subtraction to the reader.
No preview is available from the publisher, so this is a diagram of the chart type, not the artifact itself.
By
Federal Reserve Bank of St. Louis
Where
Public statistics · Fixed income
Form
Interactive · to monitor
Visual
Position, Comparison
Data
US Treasury constant maturity rates
Original