Which of the following macroeconomic variables could not be used as a leading economic indicator?

The income elasticity of demand for used cars is less than zero, so used cars are

A) an inferior good. B) a normal good. C) an inelastic good. D) a perfectly inelastic good. E) a substitute good.

Describe the facts found in the bond market about the relationship between interest rates on bonds of different maturities

What will be an ideal response?