- Those goods whose demand rises with an increase in the consumer’s income is called normal goods. Those goods whose demand decreases with an increase in consumer’s income beyond a certain level is called inferior goods.
- Income elasticity of demand for normal goods is positive but less than one. On the other hand, income elasticity is negative i.e. less than zero.
- In the case of normal goods, there is a direct relationship between income changes and the demand curve. Conversely, there is an indirect relationship between income changes and demand curve, in inferior goods.
- At falling prices, consumers prefer normal goods to inferior ones. Unlike, at rising prices, consumers would like to have inferior goods rather than normal goods.