The only variable that can affect a movement along the demand curve is
A) income levels.
B) the price of the good itself.
C) the number of buyers.
D) the number of substitutes.

Question

Quizplus · Accepted Answer

The price of the good itself is the only variable that can affect a movement along the demand curve. This is because a change in price leads to a change in quantity demanded, causing a shift along the demand curve. Other variables such as income levels, number of buyers, and number of substitutes can cause shifts in the demand curve itself.

The Only Variable That Can Affect a Movement Along the Demand