what is something that is inelastic to changes in income 
inelastic goods tend to have the same demand regardless of income certain staples and basics such as gasoline or milk would not change with income you ll still only need one gallon a week even if your income doubles the bottom lineincome elasticity of demand is the change in quantity demanded of a good or service in relation to the change in real income of a consumer that buys that good or service it is a primary variable in the causes for price elasticity income elasticity of demand will denote whether a product is an essential item or a luxury item the higher the inelasticity of demand for a good or service the more sensitive the demand for it is to fluctuations in consumer income if a good or service has a high inelasticity of demand it will experience a decline in demand when the real income of consumers decreases if real income increases it will see an increase in demand if a good or service has a low inelasticity of demand its demand will not significantly change regardless of what happens to the real income of consumers correction march 7 2023 a previous version of this article incorrectly defined an income elasticity of demand of 1 5 in an example it has been edited to reflect that an elasticity of demand of 1 5 refers to an increase of 1 5 in the percentage of the quantity demanded not an increase of 1 5 units 