Please boost your Plan to download papers
Assessment Item Macro and Microeconomics - Essay Example
Author : vandervortmicah
Macro & Microeconomics
Pages 8 (2008 words)
1a. Price elasticity of demand (PED) is the extent to which quantity demanded changes to a change in price (Bamord, Brunskill, Cain, Grant, Munday, Walton 2002). When PED of a good is between 0 and 1 then it is said to have inelastic demand with the good being more inelastic the closer the value is to zero…
The reason for PED being elastic in the long run is that consumers may switch to alternate fuel sources such as gasoline or they may use alternate methods to travel other than private transport such as travelling in public buses. Consumers also take time to adjust to price changes (Grant 2000). In the short run if the price of petrol increases consumers will still demand petrol because it takes time to adjust their demand for petrol to a change in its price. 1c. As the PED of petrol is inelastic a rise in price will cause total expenditure on petrol to rise too. When demand is inelastic, price and total expenditure (also total revenue) move in the same direction (Sloman 2007). For example let us assume that the price of petrol rises in the long run from $4 to $5. At $4 total expenditure on petrol was $400 with consumption being 100 liters of petrol at PED of 0.2. Given the PED formula: PED= % change in quantity demanded % change in price At PED of 0.2, given a price of $5 quantity demanded for petrol will fall by 5 liters to 95 liters. The total expenditure after the price increase would be $5*95= $475 (more than $400). Hence this shows that as price is increased total expenditure will also increase if demand is inelastic. 2. Carbon tax is a form of pollution tax. ...