The Demand Curve

Understanding Supply and Demand

Introduction to Demand Curves

• Supply and demand are fundamental concepts in economics, typically represented by a graph.

• The demand curve illustrates how much of a good people will want at different prices; as prices decrease, the quantity demanded increases.

Real-World Example: Black Friday

• On occasions like Black Friday, retailers lower prices to boost sales, demonstrating the relationship between price reduction and increased consumer demand.

Case Study: Oil Demand Curve

• The demand curve for oil shows that at higher prices (e.g., $55 per barrel), demand is low (5 million barrels), while at lower prices (e.g., $20 per barrel), demand significantly increases (25 million barrels).

• At an even lower price ($5 per barrel), the quantity demanded can reach up to 50 million barrels, illustrating the inverse relationship between price and quantity demanded.

High vs. Low Value Uses of Oil

• Oil has various uses; high-value uses have few substitutes (e.g., jet fuel), while low-value uses include gasoline and plastic production.

• As oil prices rise, consumers may economize by opting for more fuel-efficient cars or skipping trips altogether due to cost concerns.

Conclusion on Demand Response

• The demand curve effectively summarizes diverse consumer responses to price changes; those who continue purchasing at high prices value oil highly enough to justify costs.