Elasticity of Demand

Answer

Price elasticity of demand measures the responsiveness of quantity demanded to a change in price. It is shown by Ed. A higher value means demand responds more to price change.

Answer

The formula is E_{d}=\frac{\text { Percentage change in quantity demanded }}{\text { Percentage change in price }}. It measures how much demand changes in percentage terms when price changes in percen…

Answer

The proportionate method is E_{d}=\frac{\frac{\Delta Q}{Q}}{\frac{\Delta P}{P}}=\frac{\Delta Q}{Q} \times \frac{P}{\Delta P}. It is the same idea as the percentage method, written in algebraic form af…

Answer

Perfectly inelastic demand means quantity demanded does not change at all when price changes. Its value is Ed = 0. The demand curve is vertical and parallel to the Y-axis. Insulin for insulin-dependen…

Answer

Inelastic demand means a large change in price causes a smaller percentage change in demand. Its value is Ed < 1. Necessary goods such as foodgrains, vegetable oil, and salt are examples.

Answer

Unit elastic demand means percentage change in demand is equal to percentage change in price. Its value is Ed = 1. The demand curve is a rectangular hyperbola, and total expenditure remains constant a…

Answer

Relative elastic demand means percentage change in demand is much greater than percentage change in price. Its value is Ed > 1. This is also called elastic demand.

Answer

Perfectly elastic demand means a small change in price causes an infinitely large change in quantity demanded. Its value is Ed = infinity. The demand curve is parallel to the X-axis. It occurs only in…