Degrees (types) of price elasticity of demand:
- The extent of change in demand because of a change in price can be expressed in five degrees. This is known as degrees of price elasticity of demand.
- Demands are not fix and possess elasticity.
- All commodities do not have same price elasticity. It varies from one good to another.
- The price elasticity of demand ranges from 0 (zero) to ∞ (infinity).
- Price elasticity can be 0, <1, = 1, >1 and infinity.
Based upon these five situations, their are five degrees of demand. They are:
- Perfectly elastic demand (εp = ∞)
- Perfectly inelastic demand (εp = 0)
- Unitary elastic demand (εp – 1)
- Relatively elastic demand (εp > 1)
- Relatively inelastic demand (εp < 1)