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Key Takeaways: Price Elasticity of Demand (PED) is a products change in quantity demanded divided by change in price It is determined by various factors such as whether there are substitutes for that product, whether or not the product is a necessity and others It can be used by policymakers in a variety of practical situations One of the most useful applications of PED is to determine the potential Total Revenue of a product depending on price changes Perfect elasticity or inelasticity are theoretical concepts which represent infinitely essential and perfectly competitive products, respectively Determinants of Price Elasticity of Demand Once a manufacturer or producer knows the price elasticity of demand for their product, it can help them determine the change in Total Revenue if they have to change the price of the product

Their skulls were elongated, tapering off behind them

He has a hint of a smile, almost looks a bit like Santa Clause if he had a beard and not a kepi with a rain cover