Supply and Demand and Budget Line

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

The elasticity of demand measures the buyer’s reaction to price as its changing. “Economists measure the degree to which demand is price elastic or inelastic with the coefficient E d, defined as E d = percentage change in quantity demanded of product X/ percentage change in price of product X” (McConnell, C. 2011). Therefore, Ed=∆Qd/∆Pd. When elasticity of demand is measured less than one, demand is considered to be inelastic. The coefficient in an inelastic range is less than one. When this takes place the percentage change in price is more than the percentage change in quantity. It can be said that when inelastic demand is present that quantity becomes less effected by price changing.

Inelastic means inflexible, and it means there are no substitutes for that product. An inelastic product would be gasoline, because there is only one kind of gasoline.

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 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

This causes the price and the quantity move in opposite directions in a supply curve shift. Also, if the quantity supplied decreases at any given price the opposite will happen.

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).

Understanding the fundamental concepts of economics allows us to analyze laws that have a direct bearing on the economy. These laws and theories are essentially the backbone of how economics is used and studied. The law of demand can be expressed by stating that as long as all other factors remain constant, as prices rise, the quantity of demand for that product falls. Conversely, as the price falls, the quantity of demand for that product rises (Colander, 2006, p 91). Price is the tool used that controls how much consumers want based on how much they demand. At any given price a certain quantity of a product is demanded by consumers. As the price decreases, the quantity of the products demanded will increase. This indicates that more individuals demand the good or service as the price is lowered. This can be illustrated using the demand curve. The demand curve is a downward sloping line that illustrates the inversely related relationship of price and quantity demanded.

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.

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 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.

Demand is the relationship between price and quantity demanded for a particular good and service in particular circumstances. For each price the demand relationship tells the quantity the buyers want to buy at that corresponding price. The quantity the buyers want to buy at a particular price is called the Quantity Demanded.

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

Like the law of demand, the law of supply demonstrates the quantities that will be sold at a certain price. But unlike the law of demand, the supply relationship shows an upward slope. This means that the higher the price, the higher the quantity supplied. Producers supply more at a higher price because selling a higher quantity at a higher price increases revenue.