What will be the elasticity of demand for a product, if it has multiple uses ?

Question

Accepted Answer

The correct option is 1: $e > 1$.

A product that has multiple uses, such as electricity, milk, or steel, typically has an elastic demand ($e > 1$), meaning the percentage change in quantity demanded is greater than the percentage change in price. This phenomenon occurs because when the price of such a product falls, consumers divert its usage to minor or less important applications that they previously avoided due to the higher cost. Conversely, when the price rises, consumers quickly restrict its consumption only to the most essential uses, leading to a significant drop in overall demand. This large, responsive change in quantity demanded relative to a small price change is the defining characteristic of highly elastic demand. Therefore, the greater the number of alternative uses a commodity has, the more elastic its demand will be.

The incorrect option is 2: $e \< 1$.
This option represents inelastic demand, where the demand is relatively unresponsive to changes in price. This scenario typically applies to products with few substitutes or essential goods like common salt or life-saving medicines, which consumers continue to purchase even if the price increases significantly. Since a multi-use product allows buyers to easily switch between various applications as the price changes, its demand is highly responsive, contradicting the definition of inelastic demand.

The incorrect option is 3: $e = 0$.
This signifies perfectly inelastic demand. This condition means that the quantity demanded remains completely unchanged regardless of any price fluctuation. This extreme form of inelasticity is theoretical and applies only to absolute necessities where no substitutes exist and the item must be purchased at any cost. A multi-use product, by its nature, offers numerous avenues for reducing consumption (by cutting out non-essential uses) when the price increases, meaning demand is certainly not fixed.

The incorrect option is 4: $e = ∞$.
This represents perfectly elastic demand, a theoretical extreme where even a minuscule increase in price causes the quantity demanded to drop to zero, while a minuscule decrease causes demand to become infinite. This type of demand is characteristic of a firm operating under perfect competition, where the product is homogenous and substitutes are plentiful, but it is not directly related to the multiple-use characteristic in the way that $e \> 1$ is, which represents a more realistic measure of high elasticity.