What is the difference between a change in the demand and a change in quantity demanded?
A) A change in demand requires a movement along the demand curve, a change in quantity demanded does not.
B) A change in demand shifts the entire curve, a change in quantity demanded means price changed.
C) A change in quantity demanded means consumer preferences have changed.
D) A change in demand creates a new market equilibrium, a change in quantity demanded does not.

Question

Quizplus · Accepted Answer

A change in demand refers to a shift in the entire demand curve due to a change in factors other than price such as consumer income or tastes. In contrast, a change in quantity demanded refers to a movement along the existing demand curve, caused by a change in price. Therefore, B is the best choice as it accurately distinguishes between the two concepts. Option A incorrectly suggests that both involve movement along the demand curve, C is too narrow as it only refers to consumer preferences, and D is incorrect as a change in quantity demanded can cause a shift in market equilibrium if it is large enough.

What Is the Difference Between a Change in the Demand