Three factors that affect the elasticity of demand include:

• The necessity of the product: If a product is considered a necessity, consumers may continue to purchase it even if the price increases, making the demand for the product more inelastic.

• Income of consumers: When consumers have a higher income, they may be less sensitive to price changes, making the demand for the product more inelastic.

• Time: The longer the time period consumers have to adjust to a change in price, the more elastic the demand becomes, as they have more time to search for substitutes or adjust their consumption patterns.