Write 3 pages with APA style on Environmental Issues and Elasticity. Specific terms such as elastic versus inelastic demand, perfectly elastic versus perfectly inelastic demand are used in classifying the demand curves. Other types of elasticity include: Cross-elasticity of demand, Income elasticity of demand and Elasticity of price expectations. This assignment seeks to conduct an in-depth evaluation of the concept of demand elasticity, determinants of elasticity plus the importance of elasticity in business. in order to gain an understanding of the concept of elasticity. Keywords: Elasticity, Demand. Price elasticity of demand is an assessment of how much the quantity demanded varies when the price of the good changes. The terminology, price elasticity of demand is occasionally reduced to elasticity of demand/demand elasticity or simply put as elasticity. The price elasticity of demand regularly alludes to a distinct demand curve or demand schedule like the global demand for fossil fuels. The price elasticity of demand is plainly enumerated by the next formula: Price elasticity of demand is the percentage change in the quantity demanded divided by the percentage change in price (Taylor &amp. Weerapana, 2012). Price elasticity of demand= Percentage change in quantity demanded Percentage change in price Every one of other factors that influence demand is seized at a constant when calculating price elasticity of demand.