Degrees of Elasticity of Demand and the Demand Graph

Demand curves visually represent the elasticity of goods and services.

Perfectly elastic goods have a horizontal demand curve, indicating that any price increase leads to a complete loss of demand.

On the other hand, perfectly inelastic goods display a vertical demand curve, where the quantity demanded remains constant despite price changes.

However, these extreme cases are largely theoretical. Most goods and services fall between these two extremes.

Next is relatively elastic goods. They have flatter demand curves. This is typical for non-essential items, such as a movie ticket, where consumers can easily adjust their consumption based on price changes.

Then comes relatively inelastic goods. They have steeper demand curves. Necessities like gasoline fall into this category because consumers need them regardless of price changes, leading to minimal changes in quantity demanded.

Meanwhile, unitary elastic goods exhibit a demand curve resembling a rectangular hyperbola. Here, the percentage change in quantity demanded precisely matches the percentage change in price.

In the real world, businesses shape their pricing strategies by understanding the elasticities of their products.