A demand curve shows the relationship between price and quantity demanded, "other things remaining constant." Which of the following is NOT included in the other things that remain constant?
A) the price of substitute products
B) the price of the product
C) the number of consumers in the demographic group purchasing the product
D) the price of complementary products

Question

Quizplus · Accepted Answer

The price of the product is what changes along the demand curve, while all other factors, such as the price of substitute products, the number of consumers, and the price of complementary products, are held constant to isolate the effect of price changes on quantity demanded.

A Demand Curve Shows the Relationship Between Price and Quantity