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#### Price elasticity of demand – definition, formula and simple calculation

This video gives the definition, formula and simple calculation of price elasticity of demand.

#### Factors affecting price elasticity of demand (PED)

This video looks at factors that affect price elasticity of demand.

#### Graphing price elasticity of demand

This video shows how to graph the various elasticities of demand: perfectly inelastic demand, inelastic demand, elastic demand, perfectly elastic demand and unit elasticity.

#### Cross elasticity of demand (XED)

This video discusses the meaning of cross elasticity of demand, how to calculate XED and how to interpret XED figures.

#### Income elasticity of demand (YED)

This video discusses how to calculate income elasticity of demand (YED) and how to interpret YED figures.

#### Business relevance of elasticity estimates

This video discusses how to analyse elasticity estimates for businesses and how to evaluate the significance of elasticity estimates.

#### Total revenue and PED

This video discusses how to calculate total revenue and how elasticity impacts changes in total revenue.