State the types of demand elasticity
- Income Elasticity: Elasticity of demand with respect to change in consumer's income.
- Price Expectation Elasticity of Demand: Elasticity of demand with respect to consumer's expectations regarding future price of the commodity
- Price Elasticity: Elasticity of demand for a commodity with respect to change in its price.
- .Cross Elasticity: Elasticity of demand for a commodity with respect to change in the price of its substitutes.