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Price elasticity of demand is a Theory of the relationship between a change in the quantity demanded of a

Elasticity of demand is the relationship between the demands for a product with respect to its price. Generally, when the demand for a product is high, the price of the product decreases. When demand decreases, prices tend to climb. Products that exhibit the characteristics of elasticity of demand are usually cars, appliances and other luxury items. Items such as clothing, medicine and food are considered to be necessities. Essential items usually possess inelasticity of demand. When this occurs prices do not change significantly.

ee = (dQe/dPe)*(Pe/Qe) ; dQe/dPe is the coefficient of price in the approximated demand equation.

Elastic demand or “elasticity means the extent to which the quantity demanded changes when there’s a change in the price of a good” (Thinkwell, 2013). A product is considered elastic when the change in price increases the percentage change in quantity demanded. When

Price elasticity that relates to demand is determined by many factors. Price elasticity is measured by the change in price and the response from consumer demand. The demand of a good or service will vary the price in the item. The most important factor to determine the price elasticity of demand is necessity. If a good is a necessity, the demand will seldom change and the price is able to be adjusted. The demand is the most important due to the freedom it provides for price adjustment and inventory control. With necessity comes an inelastic price. Other factors such as the

Elasticity of demand is calculated by ED=quantity demanded/decrease in price. If you reduce the price of milk by 6%, and that causes an increase of quantity demanded by 9% the demand for milk is elastic (ED= .09/.06 = 1.5).

Price elasticity of demand refers to the difference in demand as related to price. According to Douglas (2012), “Price elasticity of demand is defined as the percentage change in quantity demanded divided by

Elasticity of demand is measured as the percentage change in quantity demand divided by the percentage change in price .

There are three kinds of elasticity. There is elastic demand, where the elasticity is over 1. There is unitary elastic, where it is at 1.0. There is inelastic demand, where the elasticity is under 1 (Investopedia, 2013).

Elasticity is a measure of the responsiveness of demand to changes in the price of a good or service. In the case of Steam Scot, when the price rises from 4 to 5, demand falls from 60,000 to 40,000 units. The original equilibrium market price of 4 pounds resulted in demand of 60,000 units and this generated revenue of 240,000 pounds. When the prices increased to 5 pounds the resulting demand is 40,000 units, and this generates total revenue of 200,000 pounds. When market price changes from 4 pounds to 5 pounds 40,000 pounds of revenue are lost in this indicates an elastic price elasticity of demand.

∏i = (Pe + 40 - 100) x 100 = 100 x Pe –6,000 -------------------- [1]

Price elasticity of demand is an economic measure that is used to measure the degree of responsiveness of the quantity demanded of a good to change in its price, when all other influences on buyers remain the same.

When price elasticity of demand is elastic, the coefficient will be greater than one. When a percent price change occurs quantity demanded responds strongly there will be a large change in quantities consumers purchase. There is price sensitive in this scenario. If price elasticity of demanded is inelastic the coefficient will be less than one. When a percent price change occurs quantity demanded does not respond strongly then there is a slight change in quantities consumers will purchase. There a weak price sensitive in this scenario. Lastly, if price elasticity of demanded is unit elastic the coefficient will be equal to one. Whenever there is a percent change in price there is an equally matched percent change in quantity demanded. This scenario is rare.

When the price of a good rises the quality demanded falls, if we think about how much does it falls. To figure out by how much it falls we must calculate the price elasticity of demand which is calculate by how responsive demand is to rise in price. Also, the price elasticity of supply measures the responsiveness of quantity supplied to a change in price.

Recall that the elasticity of demand, which measures the responsiveness of demand to price, is given by