Demand vs Quantity Demanded - Class 11 Economics Explained Simply
Demand and quantity demanded sound similar but describe different things. Demand refers to the overall relationship between price and quantities a consumer is willing and able to buy during a period, while quantity demanded is one specific amount at one particular price, other things remaining the same.
Prepared by Smit Sir · Updated 2026-09-04 · Free revision resource
Demand is the relationship; quantity demanded is one point
Think of the demand schedule or demand curve as the full relationship. One row in the schedule - for example, the quantity bought at one given price - is the quantity demanded at that price.
Price change usually causes movement along the same demand curve
When only the good's own price changes and other determinants stay constant, quantity demanded changes. This is represented by movement along the existing demand curve rather than a new demand curve.
Other determinants can shift demand
Changes in income, tastes and preferences, prices of related goods, expectations or number of consumers can change demand itself, depending on the situation. That is shown as a shift of the demand curve.
Frequently asked questions
Is demand the same as quantity demanded?
No. Demand is the complete price-quantity relationship, while quantity demanded is the specific amount demanded at a particular price, other things remaining constant.
What causes a change in quantity demanded?
In the standard demand-curve framework, a change in the good's own price causes movement along the same demand curve when other determinants are held constant.
What causes a change in demand?
A change in a determinant other than the good's own price - such as income, tastes, related-goods prices, expectations or number of consumers - can shift the demand curve, depending on the case.
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