Mary increases her consumption of Good X after the price of Good Y decreased. For Mary
A) Good X and Good Y are substitutes.
B) Good X and Good Y are complements.
C) Good X is an inferior good.
D) Good Y is an inferior good.

Question

Quizplus · Accepted Answer

Good X and Good Y are complements because Mary increases her consumption of Good X when the price of Good Y decreases, indicating that she uses these goods together.

Mary Increases Her Consumption of Good X After the Price