Andersen Windows is a manufacturer of high quality, energy-efficient windows for homes and offices. The number of windows sold is linked to the number of new homes being built. When the economy is strong and many homes are constructed, Andersen sells many windows. When few homes are constructed, few windows are sold. This is an example of:
A) derived demand.
B) the price-quality relationship.
C) the acceleration principle.
D) price-elasticity.
E) price-inelasticity.
Answer: A