Which of the following is NOT a shifter of demand?

• A. Tastes and Preferences
• B. Number of Consumers
• C. Current Price of the Good
• D. Future Expectations

Answer: (C)

The key idea is that demand can shift when non-price factors change how much consumers want to buy at every price, while a change in price itself only moves along the same demand curve.

Tastes and preferences, the number of consumers, and future expectations are determinants that shift demand. If people like a good more, more buyers exist, or they expect prices to rise in the future, the entire demand curve moves to the right (demand increases). Conversely, if these factors worsen, the curve can shift left.

The current price of the good does not shift demand. It set the point you’re willing to buy at a given moment, so when price changes, you move along the same demand curve—this is a change in quantity demanded, not a shift of demand.