Suppose that when the price of hamburgers decreases, the Ruiz family increases their purchases of ketchup.To the Ruiz family,
A)hamburgers and ketchup are complements.
B)hamburgers and ketchup and substitutes.
C)hamburgers and ketchup are normal goods.
D)hamburgers are normal goods and ketchup is an inferior good.

Question

Quizplus · Accepted Answer

Complements are two goods that are consumed together, so when the price of one good decreases, the demand for the other good increases. In this case, hamburgers and ketchup are complements because the Ruiz family increases their purchases of ketchup when the price of hamburgers decreases.

Suppose That When the Price of Hamburgers Decreases, the Ruiz