HomeFinance & EconomicsEconomicsWhat is Elasticity?
Finance & Economics·2 min·Updated Mar 11, 2026

What is Elasticity?

Elasticity in Economics

Quick Answer

Elasticity measures how much one variable responds to changes in another variable. In economics, it often refers to how the quantity demanded or supplied of a good changes when its price changes.

Overview

Elasticity is a concept in economics that helps us understand how sensitive people or businesses are to changes in price, income, or other factors. For example, when the price of a popular snack increases, some people might buy less of it, showing that the demand for that snack is elastic. On the other hand, if the price of a necessary medicine goes up, people might still buy it regardless of the price, indicating inelastic demand. The way elasticity works can be seen in the real world when looking at gas prices. If gas prices rise significantly, people may choose to drive less, carpool, or even switch to public transportation. This response shows that the demand for gas can be elastic because consumers adjust their behavior based on price changes, which can impact overall sales and revenue for gas stations. Understanding elasticity is important for businesses and policymakers. It helps them make decisions about pricing, production, and taxation. For instance, if a company knows that the demand for its product is highly elastic, it might avoid raising prices too much to prevent losing customers. Conversely, if demand is inelastic, the company might feel more confident about increasing prices.


Frequently Asked Questions

There are several types of elasticity, including price elasticity of demand, income elasticity of demand, and cross-price elasticity of demand. Each type measures how different factors affect the demand for a product or service.
Elasticity is calculated using the percentage change in quantity demanded or supplied divided by the percentage change in price or another factor. This formula helps determine whether demand is elastic, inelastic, or unitary.
Understanding elasticity helps businesses set prices effectively and forecast sales. It allows them to know how changes in price might affect consumer behavior and overall revenue.