What is the nature of elasticity?

Elasticity measures how responsive a variable is to changes in another variable, commonly used in economics to assess how supply and demand react to price changes. A product is considered elastic if a small change in price leads to a significant change in quantity demanded or supplied, while it is inelastic if quantity changes little with price shifts. Elasticity can also apply to various contexts, including income and cross-price elasticity, reflecting different relationships between variables. Overall, it provides valuable insights into consumer behavior and market dynamics.